Environmental research, health : ERH最新文献

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Outside in: the relationship between indoor and outdoor particulate air quality during wildfire smoke events in western US cities 室外-室内：美国西部城市野火烟雾事件期间室内和室外颗粒物空气质量之间的关系

Environmental research, health : ERH Pub Date : 2022-06-30 DOI: 10.1088/2752-5309/ac7d69

K. O’Dell, B. Ford, J. Burkhardt, S. Magzamen, S. Anenberg, J. Bayham, E. Fischer, J. Pierce

{"title":"Outside in: the relationship between indoor and outdoor particulate air quality during wildfire smoke events in western US cities","authors":"K. O’Dell, B. Ford, J. Burkhardt, S. Magzamen, S. Anenberg, J. Bayham, E. Fischer, J. Pierce","doi":"10.1088/2752-5309/ac7d69","DOIUrl":"https://doi.org/10.1088/2752-5309/ac7d69","url":null,"abstract":"Previous research on the health and air quality impacts of wildfire smoke has largely focused on the impact of smoke on outdoor air quality; however, many people spend a majority of their time indoors. The quality of indoor air on smoke-impacted days is largely unknown. In this analysis, we use publicly available data from an existing large network of low-cost indoor and outdoor fine particulate matter (PM2.5) monitors to quantify the relationship between indoor and outdoor particulate air quality on smoke-impacted days in 2020 across the western United States (US). We also investigate possible regional and socioeconomic trends in this relationship for regions surrounding six major cities in the western US. We find indoor PM2.5 concentrations are 82% or 4.2 µg m−3 (median across all western US indoor monitors for the year 2020; interquartile range, IQR: 2.0–7.2 µg m−3) higher on smoke-impacted days compared to smoke-free days. Indoor/outdoor PM2.5 ratios show variability by region, particularly on smoke-free days. However, we find the ratio of indoor/outdoor PM2.5 is less than 1 (i.e. indoor concentrations lower than outdoor) at nearly all indoor-outdoor monitor pairs on smoke-impacted days. Although typically lower than outdoor concentrations on smoke-impacted days, we find that on heavily smoke-impacted days (outdoor PM2.5 > 55 µg m−3), indoor PM2.5 concentrations can exceed the 35 µg m−3 24 h outdoor standard set by the US Environmental Protection Agency. Further, total daily-mean indoor PM2.5 concentrations increase by 2.1 µg m−3 with every 10 µg m−3 increase in daily-mean outdoor PM2.5. (median of statistically significant linear regression slopes across all western US monitor pairs; IQR: 1.0–4.3 µg m−3) on smoke-impacted days. These results show that for indoor environments in the western US included in our analysis, remaining indoors during smoke events is currently an effective, but limited, strategy to reduce PM2.5 exposure.","PeriodicalId":72938,"journal":{"name":"Environmental research, health : ERH","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43909130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Short-term exposure to air pollution and mental disorders: a case-crossover study in New York City 短期暴露于空气污染和精神障碍：纽约市的一项案例交叉研究

Environmental research, health : ERH Pub Date : 2022-04-05 DOI: 10.1088/2752-5309/ac6439

Eun-hye Yoo, John E. Roberts, Youngseob Eum, Xiaojiang Li, Lingzhi Chu, Pin Wang, Kai Chen

{"title":"Short-term exposure to air pollution and mental disorders: a case-crossover study in New York City","authors":"Eun-hye Yoo, John E. Roberts, Youngseob Eum, Xiaojiang Li, Lingzhi Chu, Pin Wang, Kai Chen","doi":"10.1088/2752-5309/ac6439","DOIUrl":"https://doi.org/10.1088/2752-5309/ac6439","url":null,"abstract":"There is growing evidence suggesting that exposure to air pollutants is associated with mental disorders. We investigated the impact of short-term exposures to both fine particulate matter (PM2.5) and ozone (O3) assessed at fine spatiotemporal resolutions on emergency room (ER) visits related to mental disorders using 475 755 records from New York City between 2010 and 2016. We assessed the short-term impact of daily air pollution exposure on ER visits using a case-crossover design with conditional logistic regression. We further tested whether the impact of PM2.5 and O3 varied by individuals’ age, sex, and race/ethnicity, and if associations were modified by the degree of visibility of greenspace at individuals’ residences. Results suggested that the relative risk of visiting an ER for mental-disorders increased by 2.78% (95% CI: 1.82%–3.76%) with a 10 μgm−3 increase in ambient PM2.5 concentration over a 4 day (d) moving average (lag 0–3 d) and increased by 0.71% (95% CI: 0.28%–1.15%) with a 10 ppb increase in O3 concentration on a single day lag (lag 1 d), and that these effects were modified by age and race/ethnicity, but not by sex or surrounding greenery. Specifically, we found that age group 19–35 years old and non-Whites were more susceptible to the effects of ambient air pollution exposure. In terms of specific disorders, we found that both PM2.5 and O3 have an effect on ER visits for psychotic disorders, but not dementia. Our findings suggest that short-term exposure to ambient air pollution is associated with increased ER visits for mental disorders. Further research is needed to determine the underlying mechanisms by which exposure to PM2.5 and O3 is linked to these ER visits.","PeriodicalId":72938,"journal":{"name":"Environmental research, health : ERH","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47519739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

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