Sources of lead pollution.

Constraining recent lead pollution sources in the North Pacific using ice core stable lead isotopes

[1] Trends and sources of lead (Pb) aerosol pollution in the North Pacific rim of North America from 1850 to 2001 are investigated using a high-resolution (subannual to annual) ice core record recovered from Eclipse Icefield (3017 masl; St. Elias Mountains, Canada). Beginning in the early 1940s, increasing Pb concentration at Eclipse Icefield occurs coevally with anthropogenic Pb deposition in ...

Point Sources of Pollution

Multivariate statistical assessment of heavy metal pollution sources of groundwater around a lead and zinc plant

The contamination of groundwater by heavy metal ions around a lead and zinc plant has been studied. As a case study groundwater contamination in Bonab Industrial Estate (Zanjan-Iran) for iron, cobalt, nickel, copper, zinc, cadmium and lead content was investigated using differential pulse polarography (DPP). Although, cobalt, copper and zinc were found correspondingly in 47.8%, 100.0%, and 100....

Anthropogenic air pollution sources

What one experiences today as atmosphere is a transient snapshot and result of its evolutionary history. Much of the development and present status was explained based both on scientific knowledge, and combined with established facts, even speculation. The planet Earth was formed around 4600 million years ago by the gravitational accretion of relatively small rocks and dust, within the solar ne...

Quantification of Air Pollution Sources

RESUMO – Quantificação de Poluição do Ar – A atividade industrial é uma das principais causas da poluição do ar urbano. Várias técnicas são utilizadas para monitorar e analisar os agentes poluidores. A técnica de modelamento de receptor é uma delas. A aplicação de programação linear para a quantificação de fontes poluidoras do ar, utilizando o modelamento de receptor, é apresentada neste artigo...