Long-term trends and health impact of PM2.5 and O3 in Tehran, Iran, 2006-2015.

Long-term trends and health impact of PM2.5 and O3 in Tehran, Iran, 2006-2015. Environ Int. 2018 Feb 21;114:37-49 Authors: Faridi S, Shamsipour M, Krzyzanowski M, Künzli N, Amini H, Azimi F, Malkawi M, Momeniha F, Gholampour A, Hassanvand MS, Naddafi K Abstract The main objectives of this study were (1) investigation of the temporal variations of ambient fine particulate matter (PM2.5) and ground level ozone (O3) concentrations in Tehran megacity, the capital and most populous city in Iran, over a 10-year period from 2006 to 2015, and (2) estimation of their long-term health effects including all-cause and cause-specific mortality. For the first goal, the data of PM2.5 and O3 concentrations, measured at 21 regulatory monitoring network stations in Tehran, were obtained and the temporal trends were investigated. The health impact assessment of PM2.5 and O3 was performed using the World Health Organization (WHO) AirQ+ software updated in 2016 by WHO European Centre for Environment and Health. Local baseline incidences in Tehran level were used to better reveal the health effects associated with PM2.5 and O3. Our study showed that over 2006-2015, annual mean concentrations of PM2.5 and O3 varied from 24.7 to 38.8 μg m-3 and 35.4 to 76.0 μg m-3, respectively, and were significantly declining in the recent 6 years (2010-2015) for PM2.5 and 8 years (2008-2015) for O3. However, Tehran citizens were exposed to concentrations o...
Source: Environment International - Category: Environmental Health Authors: Tags: Environ Int Source Type: research