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  2. Radio spectrum pollution - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum_pollution

    Radio spectrum pollution is the straying of waves in the radio and electromagnetic spectrums outside their allocations that cause problems for some activities. [1] It is of particular concern to radio astronomers . Radio spectrum pollution is mitigated by effective spectrum management. Within the United States, the Communications Act of 1934 ...

  3. Radioactive contamination - Wikipedia

    en.wikipedia.org/wiki/Radioactive_contamination

    Radioactive contamination, also called radiological pollution, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids, or gases (including the human body), where their presence is unintended or undesirable (from the International Atomic Energy Agency (IAEA) definition). [ 3]

  4. Radioactive waste - Wikipedia

    en.wikipedia.org/wiki/Radioactive_waste

    Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, nuclear decommissioning, rare-earth mining, and nuclear weapons reprocessing. [ 1] The storage and disposal of radioactive waste is regulated ...

  5. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1]

  6. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    An air quality index (AQI) is an indicator developed by government agencies [ 1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [ 2][ 3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...

  7. Electromagnetic radiation and health - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation...

    The field strength of electromagnetic radiation is measured in volts per meter (V/m). [ 2]: 139. The most common health hazard of radiation is sunburn, which causes between approximately 100,000 and 1 million new skin cancers annually in the United States. [ 3][ 4] In 2011, the World Health Organization (WHO) and the International Agency for ...

  8. Air pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_the...

    Anthropogenic air pollution has affected the United States since the beginning of the Industrial Revolution. [2] According to a 2024 report: "39% of people living in America—131.2 million people—still live in places with failing grades for unhealthy levels of ozone or particle pollution."

  9. List of radio stations in Maryland - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    Mid-Shore Community Radio, Inc. Community radio WHFC: 91.1 FM: Bel Air: Harford Community College: Variety WHGM: 1330 AM: Havre De Grace: Maryland Media One LLC: Oldies/Classic hits WHGT: 1590 AM: Maugansville: WHGT Christian Radio, LLC: Religious WIAD: 94.7 FM: Bethesda: Audacy License, LLC: Classic hits WICL: 95.9 FM: Williamsport: West ...