Aimed at developing a fundamental understanding of the processes determining atmospheric composition, understanding interactions between atmospheric chemical composition and physical, biospheric and climatic processes, and to predict the impact of natural and anthropogenic forcings on the chemical composition of the atmosphere.

Laser spectroscopy and computational chemistry for investigations of atmospheric chemistry - site by Ted Dibble.

US Air Quality Gradebook, which grades US counties A-F on 20 EPA measures of air quality.

GTE is primarily an aircraft-based program supplemented by ground-based measurements and satellite observations and aims to understand the chemical processes in the troposphere on a global scale.

Research is focused on the chemical and transport processes that determine atmospheric composition, dynamics, and climate, including man-made perterbations to those processes.

The EUREKA atmospheric environmental project on the Transport and Chemical Transformation of Environmentally Relevant Trace Constituents in the Troposphere over Europe.

Atmospheric chemistry and global change research at the Pacific Marine Environment Laboratory of NOAA. Details of research programmes and data server are given.

The Natural Environment Research Council (NERC) designated data centre for the Atmospheric Sciences in the United Kingdom.

Time series record of carbon dioxide in the atmosphere.

Atmospheric Aerosol Research Department, Institute for Meteorology and Climate Research (IMK), Research Centre Karlsruhe.