Human, Forest and vegetation health metrics of ground-level ozone (SOMO35, AOT40f and AOT40v) in Tehran.

ABSTRACT:

Purpose

We aimed to investigate the spatial O₃ indices (SOMO35: annual sum of maximum daily 8-h ozone means over 35 ppb, AOT40: the accumulated exposure over an hourly threshold of 40 ppb during daylight hours between 8:00 and 20:00 in the growing seasons of plants) in Tehran (2019-2020).

Methods

The data of ambient O₃ concentrations, measured at twenty-three regulatory ambient air quality monitoring stations (AQMSs) in Tehran, were obtained.

Results

The annual mean O₃ concentrations were found to be 15.8-25.7 ppb; the highest and lowest annual mean concentration of ambient O₃ were observed in Shahrdari 22 and Shahr-e-Rey stations, respectively. Spatial distribution of exposure to O₃ across Tehran was in the range

SUBMITTER: Faridi S 

PROVIDER: S-EPMC7721827 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature