Canadian and US sources impacting the mercury levels in fine atmospheric particulate material across New York State
ENVIRONMENTAL SCIENCE & TECHNOLOGY, cilt.32, sa.20, ss.3048-3054, 1998 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 32 Sayı: 20
- Basım Tarihi: 1998
- Doi Numarası: 10.1021/es980142h
- Dergi Adı: ENVIRONMENTAL SCIENCE & TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.3048-3054
- Hacettepe Üniversitesi Adresli: Hayır
Özet
An extensive atmospheric sampling and analysis program has been completed in order to identify and apportion the sources of mercury associated with fine atmospheric particulate material (d(a) < 2.5 mu m). Samples of fine atmospheric particulate material were collected daily, at five remote sites in New York State, over a period of 2 years. The trace element composition of 1200 of these samples was determined by Instrumental Neutron Activation Analysis. Results of both meteorological and statistical analyses of the data indicate that approximately 55% of the fine particulate mercury originated from smelters in Ontario and Quebec, and 25% originated from a mixture of regional sources in the Midwestern United States. A decline in the average measured particulate Hg concentration, beginning in February 1993, has been attributed to reduced emissions from one or more of the major Canadian smelters.