623 its own periodic effect.(It is a testament to the care of Delaunay, Hill, and Brown that only
a handful of modest errors have been discovered in this work by means of modern computer …

Pathways for the transfer of pollutants from the atmosphere to vegetation by gaseous
absorption (dry deposition) and in rain (wet deposition) have been studied extensively. Here …

IT is well known that a considerable part of the soluble salts present in soil, lakes and rivers
is derived from rainwater1. There is little doubt that the salt content in the rainwater comes …

RECENT measurements of inorganic chlorine gases1 and hydrocarbons2 indicate the
presence of reactive chlorine in the remote marine boundary layer; reactions involving …

Many types of aerosols have lifetimes long enough for their transcontinental transport,
making them potentially important contributors to air quality and climate change in remote …

Abstract According to the 'Faint Young Sun'paradox, during the late Archaean eon a Sun
approximately 20% dimmer warmed the early Earth such that it had liquid water and a …

Particulate matter is a component of ambient air pollution that has been linked to millions of
annual premature deaths globally,–. Assessments of the chronic and acute effects of …

Vapour condensation in cloud cores produces small droplets that are close to one another in
size. Droplets are believed to grow to raindrop size by coalescence due to collision,. Air …

An iridium anomaly at the Cretaceous/Tertiary boundary layer has been attributed to an
extraterrestrial body that struck the Earth some 65 million years ago. It has been suggested …

Transition metals are common constituents of cloud droplets, raindrops and other
atmospheric droplets1–5 (see Table 1). To evaluate the relative importance of pathways …