{"title":"Long-Term Trends in Reactive Nitrogen Deposition in the United States.","authors":"G M Beachley, C M Rogers, T F Lavery, J T Walker, M A Puchalski","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"1 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7784191/pdf/nihms-1579446.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39137435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen.","authors":"Melissa A Puchalski, John T Walker, Gregory M Beachley, Mark A Zondlo, Katherine B Benedict, Richard H Grant, Bret A Schichtel, Christopher M Rogers, April B Leytem, Joann Rice, Kristi Morris, James J Schauer, Rui Wang","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"2019 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10032039/pdf/nihms-1579444.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9187973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ongoing US-Canada collaborations on nitrogen and sulfur deposition.","authors":"Donna Schwede, Amanda Cole, Robert Vet, Gary Lear","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"June ","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7923747/pdf/nihms-1655451.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25434743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Controlling Biogenic Particle Mass with NOx and SOx.","authors":"Annmarie G Carlton, Sherri W Hunt","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Models that accurately predict atmospheric composition and correctly respond to tested policy scenarios aid air quality managers in the development of effective strategies to protect human health. Controllable emissions from human activity interact with natural emissions from plants and trees from the biosphere through complex chemistry to form ozone (O<sub>3</sub>) and organic fine particulate matter (PM<sub>2.5</sub>), criteria air pollutants that induce a variety of adverse health effects. While organic gases emitted from plants and trees are natural, some fraction of the subsequent O<sub>3</sub> and PM<sub>2.5</sub> is not. Accurate assessment of the extent to which human activity and natural emissions interact to form pollution can be achieved when models are constructed from first principle chemical and physical laws, and tested and evaluated with laboratory and field observations. In the summer of 2013, hundreds of scientists descended on the southeast U.S. to coordinate an atmospheric chemistry campaign with the ultimate goal of understanding complex biosphere-atmosphere interactions, the subsequent formation of O<sub>3</sub> and PM<sub>2.5</sub>, and accurate incorporation of the chemistry into atmospheric models. A main finding from the campaign is that anthropogenic emissions facilitate formation of organic PM<sub>2.5</sub> derived from biogenic VOCs. This fraction of PM<sub>2.5</sub> is controllable pollution. Mechanistic insight from that campaign was recently incorporated into EPA's air quality model, improving the model representation of the atmospheric modeling and informing air quality management strategies for PM<sub>2.5</sub>. Emission reductions in SO<sub>2</sub> and NOx in the southeast U.S. are found to reduce non-fossil, presumably biogenic, organic PM<sub>2.5</sub> mass concentrations, suggesting existing Federal rules have been more successful than anticipated. Additional potential feedback mechanisms may become important as emissions reductions bring the atmosphere into new chemical regimes.</p>","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"null null","pages":"9-13"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7008308/pdf/nihms-1546617.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37630859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lightning NO<sub>x</sub> Emissions and the Implications for Surface Air Quality over the Contiguous United States.","authors":"Daiwen Kang, Kenneth Pickering","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"11 ","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6559371/pdf/nihms-1529443.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37323227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The New Generation of Air Quality Modeling Systems.","authors":"Jonathan Pleim, David Wong, Robert Gilliam, Jerry Herwehe, Russell Bullock, Christian Hogrefe, George Pouliot, Limei Ran, Ben Murphy, Daiwen Kang, Wyat Appel, Rohit Mathur, Elaine Hubal","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"1 ","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8312636/pdf/nihms-1539422.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39229503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterizing Air Quality in a Rapidly Changing World.","authors":"Kristen J Benedict, Richard A Wayland, Gayle Hager","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"Nov ","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7887703/pdf/nihms-1051370.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25387227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Continuous, Near Real-Time Evaluation of Air Quality Models: An Approach for the Rapid Scientific Evolution of Modeling Systems.","authors":"Brian Eder, Robert Gilliam, George Pouliot, Rohit Mathur, Jonathan Pleim","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"0 ","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8597933/pdf/nihms-1051476.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39637269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Role of Anaerobic Digestion in Wastewater Management.","authors":"Vincent Vutai, Xin Cissy Ma, Mingming Lu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"0 September 2016","pages":"12-16"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5884444/pdf/nihms950660.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35986864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Near-Road Ambient Monitoring Network and Exposure Estimates for Health Studies.","authors":"Stuart Batterman","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The transport sector is the largest source of NO<sub>x</sub> and CO emissions, and among the largest sources of PM<sub>2.5</sub> and VOCs. As a result of EPA's new near-road monitoring requirements, high-quality measurements of ambient NO<sub>2</sub>, CO, and PM<sub>2.5</sub> concentrations will be available from more than 120 sites adjacent to major roads in over 100 cities nationwide in the next few years. This article discusses how data from the new network will provide opportunities to further develop, calibrate, and verify exposure assessment methods and models.</p>","PeriodicalId":72892,"journal":{"name":"EM (Pittsburgh, Pa.)","volume":"2013 7","pages":"24-30"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4335686/pdf/nihms661697.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33074818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}