Quantifying Diurnal Changes in NO2 Due to COVID-19 Stay-at-home Orders in New York City

Jenni A. Shearston,Ilan Cerna-Turoff,Markus Hilpert,Marianthi-Anna Kioumourtzoglou

Hygiene and environmental health advances（2022）

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摘要

•Stay-at-home orders decreased NO2 concentrations by 19% (3.2 ppb) in New York City.•Greatest decreases in NO2 were observed from 5 to 7 am and 6 to 7 pm.•Greater decreases in NO2 were found for non-roadside pollution monitors.•NO2 changes did not differ between weekends and weekdays.•We found weak evidence for variation in NO2 changes by monitor location.

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关键词

Nitrogen dioxide,Traffic-related air pollution,Pandemic,Policy impacts,New York City

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