Indoor air quality in the primary school of China-results from CIEHS 2018 study.

Indoor air quality ((IAQ) in classrooms was associated with the daily exposure of school-age children who are particularly vulnerable to air pollutants exposure, while few data exist to evaluate classroom indoor air quality nationwide in China. The subsample of the CIEHS 2018 study was performed in 66 classrooms of 22 primary schools nationwide in China. Temperature, relative humidity, PM PM, CO, CO, formaldehyde concentrations, bacteria and fungi were detected in all classrooms by using the instruments that meet the specified accuracy.

Spatiotemporal variation in residential PM2.5 and PM10 concentrations in China: National on-site survey.

Background: Significant efforts have been directed toward addressing the adverse health effects of particulate matter, while few data exist to evaluate indoor exposure nationwide in China.

Objectives: This study aimed to investigate dwellings particulate matter levels in the twelve cities in China and provide large data support for policymakers to accelerate the legislative process.

Methods: The current study was based on the CIEHS 2018 study and conducted in 12 cities of China.

Burden of Outpatient Visits Attributable to Ambient Temperature in Qingdao, China.

Climate change has been referred to as one of the greatest threats to human health, with reports citing likely increases in extreme meteorological events. In this study, we estimated the relationships between temperature and outpatients at a major hospital in Qingdao, China, during 2015-2017, and assessed the morbidity burden. The results showed that both low and high temperatures were associated with an increased risk of outpatient visits.

Characterization and exposure assessment of household fine particulate matter pollution in China.

Household fine particulate matter (PM ) pollution greatly impacts residents' health. To explore the current national situation of household PM pollution in China, a study was conducted based on literature published from 1998 to 2018. After extracting data from the literature in conformity with the requirements, the nationwide household-weighted mean concentration of household PM (HPL) was calculated.

[Development and performance evaluation for a solid phase adsorption gas sampler of formaldehyde in indoor air].

Objective: We developed a solid phase adsorption gas sampler, which is suitable for collection and analysis of indoor air formaldehyde.

Methods: This solid phase adsorption gas sampler is composed of two parts, a support part made of a glass tube covered silica-gel stopper on ports, an absorbent part in glass tube made of surface denatured synthetic fibre coated formaldehyde absorbent. We evolved its performance, and established an method for sampling and determination formaldehyde in indoor air with the gas sampler.