2020
DOI: 10.1016/j.scitotenv.2020.140758
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Impact of quarantine measures on chemical compositions of PM2.5 during the COVID-19 epidemic in Shanghai, China

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Cited by 100 publications
(117 citation statements)
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“…A great reduction in NO 2 concentrations during the lockdown was responsible for the low NO 3 − fraction, although the NOR was high. Chen et al (2020) observed that fast chemical transformation of gaseous pollutants to secondary aerosols could lead to air pollution even if anthropogenic activities were suppressed to a great extent during the lockdown in Shanghai.…”
Section: Resultsmentioning
confidence: 99%
“…A great reduction in NO 2 concentrations during the lockdown was responsible for the low NO 3 − fraction, although the NOR was high. Chen et al (2020) observed that fast chemical transformation of gaseous pollutants to secondary aerosols could lead to air pollution even if anthropogenic activities were suppressed to a great extent during the lockdown in Shanghai.…”
Section: Resultsmentioning
confidence: 99%
“…The national lockdown brings significant air quality improvement ( Chen et al, 2020 ; Sicard et al, 2020 ; Sun et al, 2020 ; Yue et al, 2020 ). The surface NO 2 concentrations and tropospheric NO 2 columns declined by 20–30% in China's main urban clusters during February to March of 2020 than the same period of 2019, and surface fine particulate matter (PM 2.5 ) and carbon monoxide (CO) declined by 24.9% and 17%, respectively, in China ( Yue et al, 2020 ).…”
Section: Introductionmentioning
confidence: 99%
“…El efecto producido por la exposición a las PM10 fue ampliamente estudiado, demostrando que cada 10 ug/m 3 de elevación en PM10 representan un 6% de aumento al riesgo de mortalidad cardiopulmonar (49) . Asimismo, la exposición a largo plazo a PM2.5 desarrolla un estímulo inflamatorio crónico, especialmente en niños y poblaciones poco saludables (36) , mientras que una exposición a corto plazo de PM2.5 aumenta la susceptibilidad a infecciones (50) , mediante un debilitamiento del sistema inmune.…”
Section: Efectos De Los Contaminantes Atmosféricos Sobre La Saludunclassified
“…Los factores meteorológicos, especialmente la velocidad del viento y las precipitaciones, tienen un impacto importante en la atmósfera (52) , así como la humedad, visibilidad y temperatura del aire tienen impacto sobre la transmisión de los virus (50) y sobre las concentraciones de los gases contaminantes. Algunos estudios encontraron una asociación significativa entre factores meteorológicos y COVID-19.…”
Section: Impacto De La Meteorologíaunclassified
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