Two Decades of Changes in Summertime Ozone Production in California's South Coast Air Basin

Begie C.Perdigones; Soojin Lee; Ronald C.Cohen

首页> 外文期刊>Environmental Science & Technology: ES&T >Two Decades of Changes in Summertime Ozone Production in California's South Coast Air Basin

【24h】

Two Decades of Changes in Summertime Ozone Production in California's South Coast Air Basin

机译：Two Decades of Changes in Summertime Ozone Production in California's South Coast Air Basin

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Tropospheric ozone(O3)continues to be a threat to human health and agricultural productivity.While O3 control is challenging,tracking underlying formation mechanisms provides insights for regulatory directions.Here,we describe a comprehensive analysis of the effects of changing emissions on O3 formation mechanisms with observational evidence.We present a new approach that provides a quantitative metric for the ozone production rate(OPR)and its sensitivity to precursor levels by interpreting two decades of in situ observations of the six criteria air pollutants(2001-2018).Applying to the South Coast Air Basin(SoCAB),California,we show that by 2016-2018,the basin was at the transition region between nitrogen oxide(NOx)-limited and volatile organic compound(VOC)-limited chemical regimes.Assuming future weather conditions are similar to 2016-2018,we predict that NOx-focused reduction is required to reduce the number of summer days the SoCAB is in violation of the National Ambient Air Quality Standard(70 ppbv)for O3.Roughly,~40%(~60%)NO.,.reductions are required to reduce the OPR by ~1.8 ppb/h(~3.3 ppb/h).This change would reduce the number of violation days from 28 to 20%(10%)in a year,mostly in summertime.Concurrent VOC reductions which reduce the production rate of HCV,radicals would also be beneficial.

著录项

来源
《Environmental Science & Technology: ES&T》 |2022年第15期|10586-10595|共10页
作者
Begie C.Perdigones; Soojin Lee; Ronald C.Cohen;
展开▼
作者单位

School of Earth Sciences and Environmental Engineering Gwangju Institute of Science and Technology,Gwangju 61005,Korea;

Department of Chemistry and Department of Earth and Planetary Science,University of California,Berkeley,California 94720,United States;

School of Earth Sciences and Environmental Engineering Gwangju Institute of Science and Technology,Gwangju 6100S,Korea;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
tropospheric ozone; air quality; ozone production rate; ozone production sensitivity; regulation; prediction;

Two Decades of Changes in Summertime Ozone Production in California's South Coast Air Basin

摘要

著录项

相关主题

期刊订阅