Air Pollution 09 : General. The presence of contaminates in the air in concentrations that interfere directly or indirectly with human health, safety, comfort, or with the full use and enjoyment of property. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}