环境科学与技术最新文献

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Accumulation of Per- and Polyfluoroalkyl Substances (PFAS) in Coastal Sharks from Contrasting Marine Environments: The New York Bight and The Bahamas 来自不同海洋环境的沿海鲨鱼体内全氟和多氟烷基物质 (PFAS) 的累积:纽约湾和巴哈马群岛
IF 9.028 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-12 DOI: 10.1021/acs.est.4c02044
Cheng-Shiuan Lee, Oliver N. Shipley, Xiayan Ye, Nicholas S. Fisher, Austin J. Gallagher, Michael G. Frisk, Brendan S. Talwar, Eric V.C. Schneider, Arjun K. Venkatesan
{"title":"Accumulation of Per- and Polyfluoroalkyl Substances (PFAS) in Coastal Sharks from Contrasting Marine Environments: The New York Bight and The Bahamas","authors":"Cheng-Shiuan Lee, Oliver N. Shipley, Xiayan Ye, Nicholas S. Fisher, Austin J. Gallagher, Michael G. Frisk, Brendan S. Talwar, Eric V.C. Schneider, Arjun K. Venkatesan","doi":"10.1021/acs.est.4c02044","DOIUrl":"https://doi.org/10.1021/acs.est.4c02044","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFAS) enter the marine food web, accumulate in organisms, and potentially have adverse effects on predators and consumers of seafood. However, evaluations of PFAS in meso-to-apex predators, like sharks, are scarce. This study investigated PFAS occurrence in five shark species from two marine ecosystems with contrasting relative human population densities, the New York Bight (NYB) and the coastal waters of The Bahamas archipelago. The total detected PFAS (∑PFAS) concentrations in muscle tissue ranged from 1.10 to 58.5 ng g<sup>–1</sup> wet weight, and perfluorocarboxylic acids (PFCAs) were dominant. Fewer PFAS were detected in Caribbean reef sharks (<i>Carcharhinus perezi</i>) from The Bahamas, and concentrations of those detected were, on average, ∼79% lower than in the NYB sharks. In the NYB, ∑PFAS concentrations followed: common thresher (<i>Alopias vulpinus</i>) &gt; shortfin mako (<i>Isurus oxyrinchus</i>) &gt; sandbar (<i>Carcharhinus plumbeus</i>) &gt; smooth dogfish (<i>Mustelus canis</i>). PFAS precursors/intermediates, such as 2<i>H</i>,2<i>H</i>,3<i>H</i>,3<i>H</i>-perfluorodecanoic acid and perfluorooctanesulfonamide, were only detected in the NYB sharks, suggesting higher ambient concentrations and diversity of PFAS sources in this region. Ultralong-chain PFAS (C ≥ 10) were positively correlated with nitrogen isotope values (δ<sup>15</sup>N) and total mercury in some species. Our results provide some of the first baseline information on PFAS concentrations in shark species from the northwest Atlantic Ocean, and correlations between PFAS, stable isotopes, and mercury further contextualize the drivers of PFAS occurrence.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":9.028,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dichloramine Hydrolysis in Membrane Desalination Permeate: Mechanistic Insights and Implications for Oxidative Capacity in Potable Reuse Applications 膜脱盐渗透液中的二氯胺水解:对饮用水回用应用中氧化能力的机理认识和影响
IF 9.028 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-12 DOI: 10.1021/acs.est.4c04547
Liang Wu, Sitao Liu, Haizhou Liu
{"title":"Dichloramine Hydrolysis in Membrane Desalination Permeate: Mechanistic Insights and Implications for Oxidative Capacity in Potable Reuse Applications","authors":"Liang Wu, Sitao Liu, Haizhou Liu","doi":"10.1021/acs.est.4c04547","DOIUrl":"https://doi.org/10.1021/acs.est.4c04547","url":null,"abstract":"Dichloramine (NHCl<sub>2</sub>) naturally exists in reverse osmosis (RO) permeate due to its application as an antifouling chemical in membrane-based potable reuse treatment. This study investigated mechanisms of background NHCl<sub>2</sub> hydrolysis associated with the generation of oxidative radical species in RO permeate, established a kinetic model to predict the oxidative capacity, and examined its removal efficiency on trace organic contaminants in potable reuse. Results showed that NHCl<sub>2</sub> hydrolysis generated transient peroxynitrite (ONOO<sup>–</sup>) and subsequently dissociated into hydroxyl radical (HO<sup>•</sup>). The maximal HO<sup>•</sup> exposure was observed at an RO permeate pH of 8.4, higher than that from typical ultraviolet (UV)-based advanced oxidation processes. The HO<sup>•</sup> exposure during NHCl<sub>2</sub> hydrolysis also peaked at a NH<sub>2</sub>Cl-to-NHCl<sub>2</sub> molar ratio of 1:1. The oxidative capacity rapidly degraded 1,4-dioxane, carbamazepine, atenolol, and sulfamethoxazole in RO permeate. Furthermore, background elevated carbonate in fresh RO permeate can convert HO<sup>•</sup> to carbonate radical (CO<sub>3</sub><sup>•–</sup>). Aeration of the RO permeate removed total carbonate, significantly increased HO<sup>•</sup> exposure, and enhanced the degradation kinetics of trace organic contaminants. The kinetic model of NHCl<sub>2</sub> hydrolysis predicted well the degradation of contaminants in RO permeate. This study provides new mechanistic insights into NHCl<sub>2</sub> hydrolysis that contributes to the oxidative degradation of trace organic contaminants in potable reuse systems.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":9.028,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Burden of Child Anemia Attributable to Fine Particulate Matters Brought by Sand Dusts in Low- and Middle-Income Countries 中低收入国家因沙尘微粒物质造成的儿童贫血负担
IF 9.028 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-12 DOI: 10.1021/acs.est.4c05305
Ning Kang, Ruohan Wang, Hong Lu, Fred Onyai, Mingjin Tang, Mingkun Tong, Xueqiu Ni, Meiling Zhong, Jianyu Deng, Yanjun Dong, Pengfei Li, Tong Zhu, Tao Xue
{"title":"Burden of Child Anemia Attributable to Fine Particulate Matters Brought by Sand Dusts in Low- and Middle-Income Countries","authors":"Ning Kang, Ruohan Wang, Hong Lu, Fred Onyai, Mingjin Tang, Mingkun Tong, Xueqiu Ni, Meiling Zhong, Jianyu Deng, Yanjun Dong, Pengfei Li, Tong Zhu, Tao Xue","doi":"10.1021/acs.est.4c05305","DOIUrl":"https://doi.org/10.1021/acs.est.4c05305","url":null,"abstract":"Addressing environmental factors has recently been recommended to curb the growing trend of anemia in low- and middle-income countries (LMICs). Fine particulate matter (PM<sub>2.5</sub>) generated by dust storms were concentrated in place with a high prevalence of anemia. In a multicounty, multicenter study, we analyzed the association between anemia and life-course averaged exposure to dust PM<sub>2.5</sub> among children aged &lt;5 years based on 0.65 million records from 47 LMICs. In the fully adjusted mixed effects model, each 10 μg/m<sup>3</sup> increase in life-course averaged exposure to dust PM<sub>2.5</sub> was associated with a 9.3% increase in the odds of anemia. The estimated exposure–response association was nonlinear, with a greater effect of dust PM<sub>2.5</sub> exposure seen at low concentrations. Applying this association, we found that, in 2017, among all children aged &lt;5 years in the 125 LMICs, dust PM<sub>2.5</sub> contributed to 37.98 million cases of anemia. Results indicated that dust PM<sub>2.5</sub> contributed a heavier burden than all of the well-identified risk factors did, except for iron deficiency. Our study revealed that long-term exposure to dust PM<sub>2.5</sub> can be a novel risk factor, pronouncedly contributed to the burden of child anemia in LMICs, affected by land degradations or arid climate.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":9.028,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Joint Effect of Short-Term Exposure to Fine Particulate Matter and Ozone on Mortality: A Time Series Study in 272 Chinese Cities. 短期暴露于细颗粒物和臭氧对死亡率的共同影响:中国 272 个城市的时间序列研究》。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-12 DOI: 10.1021/acs.est.3c10951
Chang Xu, Peng Yin, Yixuan Jiang, Xiaolei Lin, Su Shi, Xinyue Li, Jiaxin Chen, Yichen Jiang, Xia Meng, Maigeng Zhou
{"title":"Joint Effect of Short-Term Exposure to Fine Particulate Matter and Ozone on Mortality: A Time Series Study in 272 Chinese Cities.","authors":"Chang Xu, Peng Yin, Yixuan Jiang, Xiaolei Lin, Su Shi, Xinyue Li, Jiaxin Chen, Yichen Jiang, Xia Meng, Maigeng Zhou","doi":"10.1021/acs.est.3c10951","DOIUrl":"https://doi.org/10.1021/acs.est.3c10951","url":null,"abstract":"<p><p>Short-term exposure to PM<sub>2.5</sub> or O<sub>3</sub> can increase mortality risk; however, limited studies have evaluated their interaction. A multicity time series study was conducted to investigate the synergistic effect of PM<sub>2.5</sub> and O<sub>3</sub> on mortality in China, using mortality data and high-resolution pollutant predictions from 272 cities in 2013-2015. Generalized additive models were applied to estimate associations of PM<sub>2.5</sub> and O<sub>3</sub> with mortality. Modification and interaction effects were explored by stratified analyses and synergistic indexes. Deaths attributable to PM<sub>2.5</sub> and O<sub>3</sub> were evaluated with or without modification of the other pollutant. The risk of total nonaccidental mortality increased by 0.70% for each 10 μg/m<sup>3</sup> increase in PM<sub>2.5</sub> when O<sub>3</sub> levels were high, compared to 0.12% at low O<sub>3</sub> levels. The effect of O<sub>3</sub> on total nonaccidental mortality at high PM<sub>2.5</sub> levels (1.26%) was also significantly higher than that at low PM<sub>2.5</sub> levels (0.59%). Similar patterns were observed for cardiovascular or respiratory diseases. The relative excess risk of interaction and synergy index of PM<sub>2.5</sub> and O<sub>3</sub> on nonaccidental mortality were 0.69% and 1.31 with statistical significance, respectively. Nonaccidental deaths attributable to short-term exposure of PM<sub>2.5</sub> or O<sub>3</sub> when considering modification of the other pollutant were 28% and 31% higher than those without considering modification, respectively. Our results found synergistic effects of short-term coexposure to PM<sub>2.5</sub> and O<sub>3</sub> on mortality and suggested underestimations of attributable risks without considering their synergistic effects.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Viral and Bacterial Community Dynamics in Food Waste and Digestate from Full-Scale Biogas Plants. 全规模沼气厂食物垃圾和沼渣中的病毒和细菌群落动态。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.4c04109
Zhijian Shi, Xinyi Long, Chao Zhang, Zheng Chen, Muhammad Usman, Yalei Zhang, Shicheng Zhang, Gang Luo
{"title":"Viral and Bacterial Community Dynamics in Food Waste and Digestate from Full-Scale Biogas Plants.","authors":"Zhijian Shi, Xinyi Long, Chao Zhang, Zheng Chen, Muhammad Usman, Yalei Zhang, Shicheng Zhang, Gang Luo","doi":"10.1021/acs.est.4c04109","DOIUrl":"https://doi.org/10.1021/acs.est.4c04109","url":null,"abstract":"<p><p>Anaerobic digestion (AD) is commonly used in food waste treatment. Prokaryotic microbial communities in AD of food waste have been comprehensively studied. The role of viruses, known to affect microbial dynamics and metabolism, remains largely unexplored. This study employed metagenomic analysis and recovered 967 high-quality viral bins within food waste and digestate derived from 8 full-scale biogas plants. The diversity of viral communities was higher in digestate. In silico predictions linked 20.8% of viruses to microbial host populations, highlighting possible virus predators of key functional microbes. Lineage-specific virus-host ratio varied, indicating that viral infection dynamics might differentially affect microbial responses to the varying process parameters. Evidence for virus-mediated gene transfer was identified, emphasizing the potential role of viruses in controlling the microbiome. AD altered the specific process parameters, potentially promoting a shift in viral lifestyle from lysogenic to lytic. Viruses encoding auxiliary metabolic genes (AMGs) were involved in microbial carbon and nutrient cycling, and most AMGs were transcriptionally expressed in digestate, meaning that viruses with active functional states were likely actively involved in AD. These findings provided a comprehensive profile of viral and bacterial communities and expanded knowledge of the interactions between viruses and hosts in food waste and digestate.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystalline Phase Regulates Microbial Methylation Potential of Mercury Bound to MoS2 Nanosheets: Implications for Safe Design of Mercury Removal Materials. 晶相调节结合到 MoS2 纳米片上的汞的微生物甲基化潜力:对安全设计汞去除材料的影响。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.4c01552
Wenyu Guan, Zhanhua Zhang, Yaqi Liu, Yunyun Ji, Xin Tong, Yaqi Liu, Jiubin Chen, Pedro J J Alvarez, Wei Chen, Tong Zhang
{"title":"Crystalline Phase Regulates Microbial Methylation Potential of Mercury Bound to MoS<sub>2</sub> Nanosheets: Implications for Safe Design of Mercury Removal Materials.","authors":"Wenyu Guan, Zhanhua Zhang, Yaqi Liu, Yunyun Ji, Xin Tong, Yaqi Liu, Jiubin Chen, Pedro J J Alvarez, Wei Chen, Tong Zhang","doi":"10.1021/acs.est.4c01552","DOIUrl":"10.1021/acs.est.4c01552","url":null,"abstract":"<p><p>Transition-metal dichalcogenides (TMDs) have shown great promise as selective and high-capacity sorbents for Hg(II) removal from water. Yet, their design should consider safe disposal of spent materials, particularly the subsequent formation of methylmercury (MeHg), a highly potent and bioaccumulative neurotoxin. Here, we show that microbial methylation of mercury bound to MoS<sub>2</sub> nanosheets (a representative TMD material) is significant under anoxic conditions commonly encountered in landfills. Notably, the methylation potential is highly dependent on the phase compositions of MoS<sub>2</sub>. MeHg production was higher for 1T MoS<sub>2</sub>, as mercury bound to this phase primarily exists as surface complexes that are available for ligand exchange. In comparison, mercury on 2H MoS<sub>2</sub> occurs largely in the form of precipitates, particularly monovalent mercury minerals (e.g., Hg<sub>2</sub>MoO<sub>4</sub> and Hg<sub>2</sub>SO<sub>4</sub>) that are minimally bioavailable. Thus, even though 1T MoS<sub>2</sub> is more effective in Hg(II) removal from aqueous solution due to its higher adsorption affinity and reductive ability, it poses a higher risk of MeHg formation after landfill disposal. These findings highlight the critical role of nanoscale surfaces in enriching heavy metals and subsequently regulating their bioavailability and risks and shed light on the safe design of heavy metal sorbent materials through surface structural modulation.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Occurrence, Sources and Virulence Potential of Arcobacter butzleri in Urban Municipal Stormwater Systems. Arcobacter butzleri 在城市市政雨水系统中的出现、来源和致病潜力。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.4c01358
Liam R Carson, Megan Beaudry, Caterina Valeo, Jianxun He, Graham Banting, Bert van Duin, Clint Goodman, Candis Scott, Norman F Neumann
{"title":"Occurrence, Sources and Virulence Potential of <i>Arcobacter butzleri</i> in Urban Municipal Stormwater Systems.","authors":"Liam R Carson, Megan Beaudry, Caterina Valeo, Jianxun He, Graham Banting, Bert van Duin, Clint Goodman, Candis Scott, Norman F Neumann","doi":"10.1021/acs.est.4c01358","DOIUrl":"https://doi.org/10.1021/acs.est.4c01358","url":null,"abstract":"<p><p><i>A. butzleri</i> is an underappreciated emerging global pathogen, despite growing evidence that it is a major contributor of diarrheal illness. Few studies have investigated the occurrence and public health risks that this organism possesses from waterborne exposure routes including through stormwater use. In this study, we assessed the prevalence, virulence potential, and primary sources of stormwater-isolated <i>A. butzleri</i> in fecally contaminated urban stormwater systems. Based on qPCR, <i>A. butzleri</i> was the most common enteric bacterial pathogen [25%] found in stormwater among a panel of pathogens surveyed, including Shiga-toxin producing <i>Escherichia coli</i> (STEC) [6%], <i>Campylobacter</i> spp. [4%], and <i>Salmonella</i> spp. [<1%]. Concentrations of the bacteria, based on qPCR amplification of the single copy gene <i>hsp60</i>, were as high as 6.2 log<sub>10</sub> copies/100 mL, suggesting significant loading of this pathogen in some stormwater systems. Importantly, out of 73 unique stormwater culture isolates, 90% were positive for the putative virulence genes <i>cadF, ciaB, tlyA, cjl349, pldA</i>, and <i>mviN</i>, while 50-75% of isolates also possessed the virulence genes <i>irgA</i>, <i>hecA</i>, and <i>hecB</i>. Occurrence of <i>A</i>. <i>butzleri</i> was most often associated with the human fecal pollution marker HF183 in stormwater samples. These results suggest that <i>A. butzleri</i> may be an important bacterial pathogen in stormwater, warranting further study on the risks it represents to public health during stormwater use.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Winter Tracking Data Suggest that Migratory Seabirds Transport Per- and Polyfluoroalkyl Substances to Their Arctic Nesting Site. 冬季追踪数据表明,迁徙海鸟会将全氟化烃和多氟化烃物质迁移到它们的北极筑巢地。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.4c02661
Don-Jean Léandri-Breton, William Jouanneau, Pierre Legagneux, Arnaud Tarroux, Bo Rge Moe, Frédéric Angelier, Pierre Blévin, Vegard S Bråthen, Per Fauchald, Geir W Gabrielsen, Dorte Herzke, Vladimir A Nikiforov, Kyle H Elliott, Olivier Chastel
{"title":"Winter Tracking Data Suggest that Migratory Seabirds Transport Per- and Polyfluoroalkyl Substances to Their Arctic Nesting Site.","authors":"Don-Jean Léandri-Breton, William Jouanneau, Pierre Legagneux, Arnaud Tarroux, Bo Rge Moe, Frédéric Angelier, Pierre Blévin, Vegard S Bråthen, Per Fauchald, Geir W Gabrielsen, Dorte Herzke, Vladimir A Nikiforov, Kyle H Elliott, Olivier Chastel","doi":"10.1021/acs.est.4c02661","DOIUrl":"https://doi.org/10.1021/acs.est.4c02661","url":null,"abstract":"<p><p>Seabirds are often considered sentinel species of marine ecosystems, and their blood and eggs utilized to monitor local environmental contaminations. Most seabirds breeding in the Arctic are migratory and thus are exposed to geographically distinct sources of contamination throughout the year, including per- and polyfluoroalkyl substances (PFAS). Despite the abundance and high toxicity of PFAS, little is known about whether blood concentrations at breeding sites reliably reflect local contamination or exposure in distant wintering areas. We tested this by combining movement tracking data and PFAS analysis (nine compounds) from the blood of prelaying black-legged kittiwakes (<i>Rissa tridactyla</i>) nesting in Arctic Norway (Svalbard). PFAS burden before egg laying varied with the latitude of the wintering area and was negatively associated with time upon return of individuals at the Arctic nesting site. Kittiwakes (<i>n</i> = 64) wintering farther south carried lighter burdens of shorter-chain perfluoroalkyl carboxylates (PFCAs, C<sub>9</sub>-C<sub>12</sub>) and heavier burdens of longer chain PFCAs (C<sub>13</sub>-C<sub>14</sub>) and perfluorooctanesulfonic acid compared to those wintering farther north. Thus, blood concentrations prior to egg laying still reflected the uptake during the previous wintering stage, suggesting that migratory seabirds can act as biovectors of PFAS to Arctic nesting sites.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing Adverse Health Effects of Long-Term Exposure to Low Levels of Ambient Air Pollution: The HEI Experience and What's Next? 评估长期暴露于低水平环境空气污染对健康的不利影响:HEI 的经验和下一步行动?
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.3c09745
Hanna Boogaard, Dan L Crouse, Eva Tanner, Ellen Mantus, Annemoon M van Erp, Sverre Vedal, Jonathan Samet
{"title":"Assessing Adverse Health Effects of Long-Term Exposure to Low Levels of Ambient Air Pollution: The HEI Experience and What's Next?","authors":"Hanna Boogaard, Dan L Crouse, Eva Tanner, Ellen Mantus, Annemoon M van Erp, Sverre Vedal, Jonathan Samet","doi":"10.1021/acs.est.3c09745","DOIUrl":"https://doi.org/10.1021/acs.est.3c09745","url":null,"abstract":"<p><p>Although concentrations of ambient air pollution continue to decline in high-income regions, epidemiological studies document adverse health effects at levels below current standards in many countries. The Health Effects Institute (HEI) recently completed a comprehensive research initiative to investigate the health effects of long-term exposure to low levels of air pollution in the United States (U.S.), Canada, and Europe. We provide an overview and synthesis of the results of this initiative along with other key research, the strengths and limitations of the research, and remaining research needs. The three studies funded through the HEI initiative estimated the effects of long-term ambient exposure to fine particulate matter (PM<sub>2.5</sub>), nitrogen dioxide, ozone, and other pollutants on a broad range of health outcomes, including cause-specific mortality and cardiovascular and respiratory morbidity. To ensure high quality research and comparability across studies, HEI worked actively with the study teams and engaged independent expert panels for project oversight and review. All three studies documented positive associations between mortality and exposure to PM<sub>2.5</sub> below the U.S. National Ambient Air Quality Standards and current and proposed European Union limit values. Furthermore, the studies observed nonthreshold linear (U.S.), or supra-linear (Canada and Europe) exposure-response functions for PM<sub>2.5</sub> and mortality. Heterogeneity was found in both the magnitude and shape of this association within and across studies. Strengths of the studies included the large populations (7-69 million), state-of-the-art exposure assessment methods, and thorough statistical analyses that applied novel methods. Future work is needed to better understand potential sources of heterogeneity in the findings across studies and regions. Other areas of future work include the changing and evolving nature of PM components and sources, including wildfires, and the role of indoor environments. This research initiative provided important new evidence of the adverse effects of long-term exposures to low levels of air pollution at and below current standards, suggesting that further reductions could yield larger benefits than previously anticipated.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Perspective to Evaluate the Carbon Offsetting by Urban Blue-Green Infrastructure: Direct Carbon Sequestration and Indirect Carbon Reduction. 评估城市蓝绿基础设施碳抵消的新视角:直接碳封存和间接碳减排。
IF 10.8 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-07-11 DOI: 10.1021/acs.est.3c07337
Hanxi Chen, Lu Wang, Yafei Wang, Zhuobiao Ni, Beicheng Xia, Rongliang Qiu
{"title":"New Perspective to Evaluate the Carbon Offsetting by Urban Blue-Green Infrastructure: Direct Carbon Sequestration and Indirect Carbon Reduction.","authors":"Hanxi Chen, Lu Wang, Yafei Wang, Zhuobiao Ni, Beicheng Xia, Rongliang Qiu","doi":"10.1021/acs.est.3c07337","DOIUrl":"https://doi.org/10.1021/acs.est.3c07337","url":null,"abstract":"<p><p>Urban blue-green infrastructure (BGI) offers a multitude of ecological advantages to residents, thereby playing a pivotal role in fortifying urban resilience and fostering the development of climate-resilient cities. Nonetheless, current research falls short of a comprehensive analysis of BGI's overall potential for carbon reduction and its indirect carbon reduction impact. To fill this research gap, we utilized the integrated valuation of ecosystem services and trade-offs model and remote sensing estimation algorithm to quantify the direct carbon sequestration and resultant indirect carbon reduction facilitated by the BGI within the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) (China). To identify the regions that made noteworthy contributions to carbon offsets and outliers, spatial autocorrelation analysis was also employed. The findings of this study reveal that in 2019, the BGI within the study area contributed an overall carbon offset of 1.5 × 10<sup>8</sup> t·C/yr, of which 3.5 × 10<sup>7</sup> and 11.0 × 10<sup>7</sup> t·C/yr were the result of direct carbon sequestration and indirect carbon reduction, respectively. The GBA's total CO<sub>2</sub> emissions were 1.1 × 10<sup>8</sup> t in 2019. While the direct carbon sequestration offset 32.0% of carbon emissions, the indirect carbon reduction mitigated 49.9% of potential carbon emissions. These results highlight the critical importance of evaluating BGI's indirect contribution to carbon reduction. The findings of this study provide a valuable reference for shaping management policies that prioritize the protection and restoration of specific areas, thereby facilitating the harmonized development of carbon offset capabilities within urban agglomerations.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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