Air pollution data from a nationwide monitoring campaign in China linked smaller-sized particles (PM1) with an increased risk of cardiovascular disease
Finer particulate matter (PM1) could increase cardiovascular disease risk
By American Chemical Society ——Bio and Archives--February 2, 2020
In addition to harmful gases such as carbon monoxide, air pollution contains tiny particles that have been linked to health problems, including cardiovascular disease and asthma. Most studies have analyzed the potential health effects of larger-sized particulate matter (PM), such as particles less than 2.5 μm in diameter (PM2.5). Now, researchers report in Environmental Science & Technology Letters that particles with diameters less than 1 μm (PM1) are even more strongly correlated with cardiovascular disease.
Higher Risk of Cardiovascular Disease Associated with Smaller Size-Fractionated Particulate Matter
To better understand air pollution, a nationwide PM1 monitoring campaign was recently performed in China. Zhaomin Dong, Maigeng Zhou and colleagues analyzed the data, which came from 65 Chinese cities, to determine if PM1 exposure correlated with the number of non-accidental deaths in each city during the same time period. They found that for every 10 μg/m3 increase in PM1, there was a 0.29% increased risk of cardiovascular disease, which was 21% higher than the risk related to PM2.5 (0.24%). The finer PM1 could more easily deposit in the lungs and circulation than larger particles, which might explain the increased health risks, the researchers say.
The authors acknowledge funding from the Ministry of Science and Technology of the People’s Republic of China, the National Natural Science Foundation of China and the Fundamental Research Project of Beihang University.
“Higher Risk of Cardiovascular Disease Associated with Smaller Size-Fractionated Particulate Matter”
American Chemical Society, ACS is a congressionally chartered independent membership organization which represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry.
In addition to harmful gases such as carbon monoxide, air pollution contains tiny particles that have been linked to health problems, including cardiovascular disease and asthma. Most studies have analyzed the potential health effects of larger-sized particulate matter (PM), such as particles less than 2.5 μm in diameter (PM2.5). Now, researchers report in Environmental Science & Technology Letters that particles with diameters less than 1 μm (PM1) are even more strongly correlated with cardiovascular disease.
