Status and prediction of ozone as an air pollutant in Ahvaz City, Iran
In the present study, air quality analyses for ozone (O3) were conducted in Ahvaz, a city in the south of Iran. The measurements were taken from 2009 through 2010 in two different locations to prepare average data in the city. Relations between the air pollutant and some meteorological parameters...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Guilan
2014-10-01
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| Series: | Caspian Journal of Environmental Sciences |
| Subjects: | |
| Online Access: | https://cjes.guilan.ac.ir/article_1149.html |
| Summary: | In the present study, air quality analyses for ozone (O3) were conducted in Ahvaz, a city in the south of
Iran. The measurements were taken from 2009 through 2010 in two different locations to prepare average
data in the city. Relations between the air pollutant and some meteorological parameters were calculated
statistically using the daily average data. The wind data (velocity, direction), relative humidity,
temperature, sunshine hours, evaporation and rainfall were considered as independent variables. The
relationships between concentration of pollutant and meteorological parameters were expressed by
multiple linear and nonlinear regression equations for both annual and seasonal conditions using SPSS
software. RMSE test showed that among different prediction model, stepwise model is the best option. The
average concentrations were calculated for every 24 hours, each month and each season. Results showed
that the highest concentration of ozone occurs generally in the afternoon, while the least concentration is
found at the beginning of the morning. Monthly concentrations of ozone showed the highest value in
August, while the least value was found in October. The seasonal concentrations showed the highest
amounts in summer. |
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| ISSN: | 1735-3033 1735-3866 |