Assessment of Air Quality Status in Wuhan, China
| Autor: | Rong-Biao Xiang, Lin-Jun Li, Jiabei Song, Wu Guang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Pollution
Atmospheric Science 010504 meteorology & atmospheric sciences Meteorology media_common.quotation_subject 010501 environmental sciences Environmental Science (miscellaneous) lcsh:QC851-999 01 natural sciences complex mixtures Air pollutants medicine China Air quality index 0105 earth and related environmental sciences media_common Pollutant Seasonality medicine.disease air quality cluster analysis spatiotemporal variation respiratory tract diseases Environmental science lcsh:Meteorology. Climatology Physical geography |
| Zdroj: | Atmosphere; Volume 7; Issue 4; Pages: 56 Atmosphere, Vol 7, Iss 4, p 56 (2016) |
| ISSN: | 2073-4433 |
| DOI: | 10.3390/atmos7040056 |
| Popis: | In this study, air quality characteristics in Wuhan were assessed through descriptive statistics and Hierarchical Cluster Analysis (HCA). Results show that air quality has slightly improved over the recent years. While the NO2 concentration is still increasing, the PM10 concentration shows a clearly downward trend with some small fluctuations. In addition, the SO2 concentration has steadily decreased since 2008. Nevertheless, the current level of air pollutants is still quite high, with the PM10 and NO2 levels exceeding the air quality standard. Seasonal variation exists consistently for all the pollutants, with the highest concentration in winter and the lowest in summer. Cluster analysis evidenced that nine urban monitoring sites could be classified into three clusters. Cluster I consists of only the LY site, which is located in the famous East Lake scenic area with the best air quality. Cluster II corresponds to three monitoring sites with heavily trafficked roads nearby, where relatively severe NO2 pollution occurred. Cluster III is comprised of the remaining five sites, characterized by PM10 and SO2 pollution. |
| Databáze: | OpenAIRE |
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