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

摘要: The main objectives of this study were (1) investigation the temporal variations ambient fine particulate matter (PM; 2.5; ) and ground level ozone (O; 3; concentrations in Tehran megacity, capital most populous city Iran, over a 10-year period from 2006 to 2015, (2) estimation their long-term health effects including all-cause cause-specific mortality. For first goal, data PM; O; concentrations, measured at 21 regulatory monitoring network stations Tehran, obtained trends investigated. impact assessment was performed using World Health Organization (WHO) AirQ+ software updated 2016 by WHO European Centre for Environment Health. Local baseline incidences used better reveal associated with . Our showed that 2006-2015, annual mean varied 24.7 38.8 μg m; -3; 35.4 76.0 μg m; , respectively, significantly declining recent 6 years (2010-2015) 8 years (2008-2015) However, citizens exposed exceeding air quality guideline (WHO AQG) (10 μg m; ), U.S. EPA Iranian standard levels (12 μg m; during entire period. We estimated exposure contributed between 24.5% 36.2% mortality cerebrovascular disease (stroke), 19.8% 24.1% ischemic heart (IHD), 13.6% 19.2% lung cancer (LC), 10.7% 15.3% chronic obstructive pulmonary (COPD), 15.0% 25.2% acute lower respiratory infection (ALRI), 7.6% 11.3% time further deaths IHD accounted attributable years life lost (YLL) vary 67,970 106,706 In addition, be responsible 0.9% 2.3% diseases. Overall, substantially megacity. Air pollution is modifiable risk factor. Appropriate sustainable control policies are recommended protect public health.