Millions of people die every year from diseases caused by exposure to outdoor air
pollution,,,,. Some studies have estimated premature mortality related to local sources of air …

AIRBORNE mineral dust can have a significant effect on the Earth's radiation budget, as it
can both scatter sunlight back to space (leading to negative radiative forcing), and absorb …

EXTREME environmental pollution such as that found in the highly industrialized Silesian
region of Poland has been associated with increased risk of cancer and adverse …

The hydroxyl radical is the predominant atmospheric oxidant, responsible for removing a
wide range of trace gases, including greenhouse gases, from the atmosphere …

Air pollution contributes to the global burden of disease, with ambient exposure to fine
particulate matter of diameters smaller than 2.5 μm (PM2. 5) being identified as the fifth …

It is widely assumed that atmospheric oxygen concentrations remained persistently low (less
than 10− 5 times present levels) for about the first 2 billion years of Earth's history. The first …

DESPITE evidence from Greenland ice cores for pre-industrial atmospheric trace-metal
contamination1, 2 it is commonly assumed that air pollution in remote areas is a recent …

HETEROGENEOUS chemical reactions on the surfaces of solid or liquid particles present in
the lower stratosphere may be an important influence on the levels of ozone depletion …

The presence of oxygenated organic compounds in the troposphere strongly influences key
atmospheric processes. Such oxygenated species are, for example, carriers of reactive …

Aerosol particles produced over forested areas may affect climate by acting as nuclei for
cloud condensation, but their composition (and hence the chemical species that drive their …