Metals in ambient air-polluted and unpolluted areas

O'Donnell, J.W.; Severs, R.K.; Pier, Stanley M.

doi:10.1016/0048-9697(76)90075-9

Cited by 3 publications

(1 citation statement)

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“…Causing serious environmental risks, its effect has been examined extensively (Onder and Dursun 2006). Some studies show that total suspended particles (TSP) and metal concentrations follow a similar pattern but Beceiro-Gonzalez et al (1997) found that, for the same area, TSP and PM 10 metal distribution patterns were different (O'Donnell et al 1976). There are many investigations on Pb, Cd, Hg, and other heavy metal levels in air and their toxic effects (Onder and Dursun 2006).…”

Section: Introductionmentioning

confidence: 99%

The study of TSP and PM10 concentration and their heavy metal content in central area of Tehran, Iran

Leili

Naddafi

Nabizadeh

et al. 2008

Air Qual Atmos Health

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Atmospheric particulate matter may exert serious health hazards because of its chemical characteristics. The main objective of this study is to assess the concentrations of total suspended particles (TSP), particulate matter (PM) with an aerodynamic diameter ≤10 μm (PM 10 ), and airtransmitted particulate trace metals in Tehran University (a central location in Tehran, capital of Iran) ambient air, for the period of 5 months viz. February-June 2007. Furthermore, the present work examines the daily levels of fine particles in comparison with the proposed limiting values from the U.S. Environmental Protection Agency (65 μg m −3 for PM 10 ). The sampling for TSP and PM 10 was performed using a high-volume sampler. The TSP and PM 10 levels were determined by gravimetry and the metals by flame atomic absorption spectrometry. Arithmetic means of 151±44 µg m −3 and 90±38 µg m −3 were determined for TSP and PM 10 , respectively. Comparing with EPA primary and secondary air quality standards, only PM 10 concentrations in 3 days were higher than the standard values. Heavy metal content of both TSP and PM 10 , such as chromium (Cr), cadmium (Cd), and lead (Pb), were also analyzed separately during the same period using atomic absorption spectrometry.

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