Ultra-clean air

Ultraviolet Radiation Compared to an Ultra - Clean Air Enclosure 813

Clean air in the operating room is important during joint replacement surgery. We compared monochromatic ultraviolet radiation of254 nm with the use ofa Charnley-Howorth air enclosure by bacterial air-sampling during 113 total hip arthroplasties. Air samples were taken continuously at the edge of the wound and every 15 minutes at a site 130 cm from the operating table. We also tested the effect...

Why Is Clean Air Clean?

Air exhibiting very low concentrations of light-scattering aerosol particles is occasionally observed even in industrialized regions. Evidence is presented that this very clean air results from highly efficient removal of aerosol particles coupled to the removal of water in precipitation.

Soil Air Water CLEAN

Indonesia’s Clean Air Program

Unprecedented industrial development during the last two decades, accompanied by a growing population, has increased the amount of environmental damage in Indonesia. A critical environmental problem is the rising level of air pollution in several large cities. This has stimulated the government to develop a national program designed to control the quantity of pollutants in the air. However, the...

Clean air in the Anthropocene.

In atmospheric chemistry, interactions between air pollution, the biosphere and human health, often through reaction mixtures from both natural and anthropogenic sources, are of growing interest. Massive pollution emissions in the Anthropocene have transformed atmospheric composition to the extent that biogeochemical cycles, air quality and climate have changed globally and partly profoundly. I...