Study on revision of standard limits for nitrogen dioxide in "Standards for indoor air quality（GB/T 18883-2022）" in China.
10.3760/cma.j.cn112150-20230612-00459
- VernacularTitle:《室内空气质量标准》（GB/T 18883-2022）二氧化氮标准限值的修订研究
- Author:
Qing Li ZHANG
1
;
Ren Jie CHEN
1
;
Hai Dong KAN
1
Author Information
1. Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China.
- Publication Type:Journal Article
- MeSH:
Humans;
Air Pollution, Indoor/adverse effects*;
Nitrogen Dioxide;
Air Pollutants/analysis*;
China;
Air Pollution/adverse effects*
- From:
Chinese Journal of Preventive Medicine
2023;57(11):1766-1769
- CountryChina
- Language:Chinese
-
Abstract:
Nitrogen dioxide (NO2) is an important indoor air pollutant, with both outdoor and indoor sources contributing to indoor NO2 exposure levels. Considering the association of high NO2 exposure with adverse health effects, the Standards for indoor air quality (GB/T 18883-2022) have been revised to further restrict indoor NO2 limit values. The 1-h average concentration limit value for NO2 has been reduced from 0.24 mg/m3 to 200 μg/m3.This study analyzed the technical contents related to the determination of the limits of indoor NO2 in Standards for Indoor Air Quality (GB/T 18883-2022), including source, exposure level, health effects, and the process and evidence basis for determining the limit value. It also proposed prospects for the direction for the implementation of the indoor NO2 standard.
