| Autor: |
Omar, Nasr Yousef M.J.1, Mon, Tan Chin1, Rahman, Noorsaadah A.1, Abas, M. Radzi Bin radzi@um.edu.my |
| Předmět: |
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| Zdroj: |
Science of the Total Environment. Oct2006, Vol. 369 Issue 1-3, p76-81. 6p. |
| Abstrakt: |
Abstract: The concentrations and distributions of particle bound polycyclic aromatic hydrocarbons (PAHs) collected over a 10 month period in ambient environment, at street levels as well as during a hazy episode are reported. Ambient and street level distributions of PAHs were similar and their occurrence was attributed to vehicular emissions. However, in haze particles, a different pattern of PAHs was observed, characterized by relatively low levels of benzo[a]pyrene (BaP) and high levels of benzofluoranthenes (BFs). The BaP equivalency results showed that the potential health risk associated with haze smoke particles was 4 times higher than that of street level particles whereas the lowest health risk was associated with ambient atmospheric particles. [Copyright &y& Elsevier] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full Text from ScienceDirect