Air pollution monitoring stations of the capital city Tehran have recorded more days with ground-level ozone in July, posing a serious risk to citizens’ health and the environment.
According to data published by Tehran Air Quality Control Company, Tehran’s residents have been exposed to high levels of ground-level ozone in the month, a source of air pollution that becomes conspicuous when temperature rises.
Based on TAQCC charts, during the period under review, ozone pollutant hit emergency levels and Air Pollution Index entered the “unhealthy” threshold for all citizens on two days, as API stood between 151 and 200.
The index categorizes conditions dictated by a measure of polluting matters into good (0-50), moderate (51-100), unhealthy for sensitive groups (101-150), unhealthy (151-200), very unhealthy (201-300) and hazardous (301-500).
In addition, the index hovered in the range of 101 to 150 in 18 days, which indicates unhealthy condition for sensitive groups.
August 01, 2020 18:40
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Tehran Ozone Pollution Worsens
Tehran’s residents in July have been exposed to high levels of ground-level ozone, a source of air pollution that becomes conspicuous when temperature rises
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