ESGRâs Customer Service Center is available to answer a USERRA question or to refer cases to a trained Ombudsman. Contact the Customer Service Center Monday through Friday (except federal holidays) 8AM to 6PM (EST): 1  By Phone: 800-336-4590 option 1. 2  By Email: osd.USERRA@mail.mil.
Because a large share of air pollution is caused by combustion of fossil fuels such as coal and oil, the reduction of these fuels can reduce air pollution drastically. Most effective is the switch to clean power sources such as wind power, solar power, hydro power which don't cause air pollution.
We usually think of air pollution as being outdoors, but the air in your house or office could also be polluted. Sources of indoor pollution include. Mold and pollen. Tobacco smoke. Household products and pesticides. Gases such as radon and carbon monoxide. Materials used in the building such as asbestos, formaldehyde and lead.