Power-law behaviors of the severity levels of unhealthy air pollution events

Nurulkamal Masseran ()
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Nurulkamal Masseran: Universiti Kebangsaan Malaysia

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2022, vol. 112, issue 2, No 31, 1749-1766

Abstract: Abstract The severity level of air pollution refers to the cumulative effect of unhealthy air pollutant index (API) values during certain air pollution events. High severity levels indicate a negative effect on human health, a disruption in economic activities, and possible disastrous consequences on the environmental ecosystem. This study investigated the power-law behaviors of air pollution events with high severity levels. Three types of power-law models were used to analyze the API data in Klang, Malaysia. The results revealed that the continuous power-law distribution is a reliable model for describing the power-law behaviors that occur in the upper tail of the API distribution. Air pollution events with severity levels greater than a threshold of 1221 were found to exhibit power-law behaviors. On this basis, this study suggest that authorities exercise vigilance with respect to pollution incidents with severity levels exceeding the 1221 threshold.

Keywords: Air pollution modeling; Air pollution risk assessment; Extreme pollution event (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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DOI: 10.1007/s11069-022-05247-5

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