Cardiopulmonary mortality and COPD attributed to ambient ozone

Mehdi Jourvande, Lorestan University of Medical Sciences and Hassan Basirie, Lorestan University of Medical Sciences and Yusef Omidi Khaniabadi, Ahvaz Jundishapur University of Medical Sciences and Philip K. Hopke, Clarkson University, Potsdam and Gholamreza Goudarzi, Ahvaz Jundishapur University of Medical Sciences and Seyed Mohammad Daryanoosh, Ahvaz Jundishapur University of Medical (2016) Cardiopulmonary mortality and COPD attributed to ambient ozone. Environmental Research, 152 (2017). pp. 336-341.

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Abstract

Tropospheric ozone is the second most important atmospheric pollutant after particulate matter with respect to its impact on human health and is increasing of its concentrations globally. The main objective of this study was to assess of health effects attributable to ground-level ozone (O3) in Kermanshah, Iran using one-hour O3 concentrations measured between March 2014 and March 2015. The AirQ program was applied for estimation of the numbers of cardiovascular mortality (CM), respiratory mortality (RM), and hospital admissions for chronic obstructive pulmonary disease (HA-COPD) using relative risk (RR) and baseline incidence (BI) as defined by the World Health Organization (WHO). The largest percentage of person-days for different O3 concentrations was in the concentration range of 30–39 μg/m3. The health modeling results suggested that ~2% (95% CI: 0–2.9%) of cardiovascular mortality, 5.9% (95% CI: 2.3–9.4) of respiratory mortality, and 4.1% (CI: 2.5–6.1%) of the HA-COPD were attributed to O3 concentrations higher than 10 μg/m3. For each 10 μg/m3 increase in O3 concentration, the risk of cardiovascular mortality, respiratory mortality, and HA-COPD increased by 0.40%, 1.25%, and 0.86%, respectively. Furthermore, 88.8% of health effects occurred on days with O3 level less than 100 μg/m3. Thus, action is needed to reduce the emissions of O3 precursors especially transport and energy production in Kermanshah. Keywords: Health impact Mortality COPD Ozone Kermanshah

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