Certain five heavy metals viz. arsenic (As), cadmium (Cd), chromium (Cr)(VI), mercury (Hg),
and lead (Pb) are non-threshold toxins and can exert toxic effects at very low concentrations …

Many atmospheric chemicals occur in the gas phase as well as in liquid cloud droplets and
aerosol particles. Therefore, it is necessary to understand the distribution between the …

Mercury (Hg) is emitted to the atmosphere mainly as volatile elemental Hg 0. Oxidation to
water-soluble Hg II plays a major role in Hg deposition to ecosystems. Here, we implement a …

Calculated loading rates of trace metals into the three environmental compartments
demonstrate that human activities now have major impacts on the global and regional cycles …

For the past 3.8 billion years, the geochemistry of the Earth's surface-its atmosphere, waters
and exposed crust-has been determined by the presence of biota. Photosynthetic organisms …

A PROPER inventory of atmospheric emissions from natural sources is basic to our
understanding of the atmospheric cycle of the trace metals (and metalloids), and is also …

Elevated mercury (Hg) in marine and terrestrial ecosystems is a global health concern
because of the formation of toxic methylmercury. Humans have emitted Hg to the …

This paper presents a broad overview and synthesis of current knowledge and
understanding pertaining to all major aspects of mercury in the atmosphere. The significant …

Over the past decade it has become apparent that the atmosphere is a significant pathway
for the transport of many natural and pollutant materials from the continents to the ocean …

This paper presents an overview of research related to mercury control technology for coal-
fired power plants and identifies areas requiring additional research and development. It …