The Northeast States and Eastern Canadian Provinces mercury study: a framework for action: summary of the Canadian chapter

Pilgrim, Wilfred; Poissant, Laurier; Trip, Luke

doi:10.1016/s0048-9697(00)00639-2

Cited by 27 publications

(10 citation statements)

References 12 publications

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“…For this reason, it would not make sense to build a correlation matrix between this data and TGM concentrations. Nevertheless, in order to give an idea about atmospheric quality in Paulínia, the concentrations of O 3 , NO 2 , SO 2 , CO and MP 10 were analyzed in view of the Brazilian regulations. It appeared that during the monitored periods these pollutants were always lower than the concentrations defined as giving a low-level health effect.…”

Section: Diel and Seasonal Variations Of Tgmmentioning

confidence: 99%

“…They also implemented initiatives and actions, including legislation, to manage and control releases and limit use and exposures of mercury within their territories. 6,[10][11][12] In the southern hemisphere, where most developing countries are located, mining activities (gold and silver) have been considered as the main sources of mercury, and data about other anthropogenic sources and atmospheric mercury concentrations are rare. 6,13 Nevertheless, it must be considered that the productive capacities of many of these countries have increased significantly during the last decade, probably resulting in a significant enhancement of atmospheric mercury emissions in these countries.…”

Section: Introductionmentioning

confidence: 99%

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Gaseous and particulate atmospheric mercury concentrations in the Campinas Metropolitan Region (São Paulo State, Brazil)

Fostier¹,

Michelazzo²

2006

J. Braz. Chem. Soc.

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As concentrações de Mercúrio Gasoso Total (MGT) e Mercúrio Particulado Total (MPT) foram monitoradas durante as estações seca e úmida de 2002-2003 em dois pontos (industrial e residencial) da Região Metropolitana de Campinas. Não foi observada diferença significativa entre as concentrações dos pontos de amostragem e as concentrações médias foram 7,0 ± 5,8 ng m -3 (MGT) e 0,4 ± 0,3 ng m -3 (MPT). A análise da variação nictemeral mostrou maior concentração de MGT durante o dia, que poderia estar relacionada com maior atividade antrópica durante o dia. Processos de dispersão atmosférica também poderiam explicar algumas variações sazonais observadas na concentração de MGT. Para o MPT foi observada uma tendência de diminuição da concentração durante a estação úmida, o que poderia ser explicado pela remoção das partículas por deposição úmida. As concentrações de MGT e MPT encontradas neste estudo são da mesma ordem de magnitude das encontradas em regiões industrializadas do hemisfério norte. Estes resultados mostram que as emissões das regiões mais industrializadas do Brasil, e provavelmente de vários outros pais do hemisfério sul, deveriam também ser inventariadas e levadas em conta nos cálculos das emissões globais de mercúrio de origem antrópica. The concentrations of Total Gaseous Mercury (TGM) and Total Particulate Mercury (TPM)were monitored during the 2002-2003 rainy and dry seasons at two sampling points (industrial and residential areas) of the Campinas Metropolitan Region. No significant difference was observed between the concentrations found at the two sampling areas and the mean values were 7.0 ± 5.8 ng m -3 (TGM) and 0.4 ± 0.3 ng m -3 (TPM). The analysis of the diel variability showed higher TGM concentrations during the day, which could be related to more intense anthropogenic activity during the day. Atmospheric dispersion processes could also explain some seasonal variation observed in TGM concentrations. For TPM concentrations a decreasing trend was observed during the rainy season, which could be explained by the removal of particles by wet deposition. The concentrations of TGM and TPM found in this study were of the same order of magnitude of those recorded in some highly industrialized regions of the northern hemisphere. These data show that emissions from the most industrialized Brazilian regions, and probably from similar regions in other countries of the southern hemisphere, should also be assessed and integrated into the global anthropogenic mercury emission assessment.

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Section: Diel and Seasonal Variations Of Tgmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gaseous and particulate atmospheric mercury concentrations in the Campinas Metropolitan Region (São Paulo State, Brazil)

Fostier¹,

Michelazzo²

2006

J. Braz. Chem. Soc.

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“…However, only since about 1900 have anthropogenic contributions of atmospheric Hg increased dramatically (three to fivefold above background) in lake sediment records of the Upper Midwest U.S. (Swain et al, 1992), the northeastern USA. (Norton et al, 1997Lorey and Driscoll, 1999;Perry et al, 2001;Kamman and Engstrom, 2002), and the Maritime Canada Provinces (Pilgrim et al, 2000;Lamborg et al, 2002). Three recent studies have examined the history of Hg pollution in lakes from the atmosphere in the northeastern USA (Lorey and Driscoll, 1999;Perry et al, 2001;Kamman and Engstrom, 2002).…”

Section: Introductionmentioning

confidence: 99%

Deconstruction of Historic Mercury Accumulation in Lake Sediments, Northeastern United States

et al. 2005

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Total atmospheric contribution of mercury (Hg(T)) to lake sediment was estimated using 210Pb-dated sediment cores. Algorithms based on estimates of lake and watershed processes were applied to more accurately assess anthropogenic contributions of Hg to the environment and Hg(T). Factors addressed include: lake-specific background accumulation rates of Hg (Hg(B)), variability of sediment accumulation rates that caused variation in Hg accumulation during the last 100-150 years (Hgv), and variable flux of anthropogenic Hg from the atmosphere (Hg(A)). These fluxes were normalized for sediment focusing using a regional, unsupported 210Pb correction factor to yield Hg(A,F). Time series maps of Hg(A,F) allow for comparison across time and space, and are provided for 1900, 1950, 1975 and 1990 across eastern New York and New England, USA. Deconstruction algorithms reduce inter-/intra-lake variability in Hg accumulation rates and improve temporal coherence. Hg(A,F) started to increase near the end of the 19th century to a maximum between 1970 and 1990, depending on the lake. Maximum Hg(T) across the region ranges from 27.1 to 175 microg/m2 year. Maximum Hg(A,F) ranged from 10.4 to 66.3 microg/m2 year. The timing of Hg(A,F) declines in response to decreased atmospheric deposition may be controlled by in-lake and in-watershed storage and transport of Hg-bearing sediment.

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“…Particularly, there is a need to undertake prospective epidemiological research on cognitive, neurologic, and neurobehavioral function in cohorts of infants and children of women who had high intakes of mercury from the consumption of fish prior to and during pregnancy (Gilbertson and Carpenter, 2004). Although health advisories on fish consumption are issued both in Canada and the USA, the public awareness and concern for these are uncertain (Pilgrim et al, 2000). People who eat fish from the Great Lakes should pay close attention to fish advisories in order to avoid high mercury levels in their bodies (Anderson et al, 2004;Knobeloch et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Managing mercury in the great lakes: An analytical review of abatement policies

Mohapatra¹,

Nikolova²,

Mitchell³

2007

Journal of Environmental Management

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The Northeast States and Eastern Canadian Provinces mercury study: a framework for action: summary of the Canadian chapter

Cited by 27 publications

References 12 publications

Gaseous and particulate atmospheric mercury concentrations in the Campinas Metropolitan Region (São Paulo State, Brazil)

Gaseous and particulate atmospheric mercury concentrations in the Campinas Metropolitan Region (São Paulo State, Brazil)

Deconstruction of Historic Mercury Accumulation in Lake Sediments, Northeastern United States

Managing mercury in the great lakes: An analytical review of abatement policies

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