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  2. Pollution - Wikipedia

    en.wikipedia.org/wiki/Pollution

    A visual comparison of the free market and socially optimal outcomes. It is possible to use environmental economics to determine which level of pollution is deemed the social optimum. For economists, pollution is an "external cost and occurs only when one or more individuals suffer a loss of welfare".

  3. Air quality guideline - Wikipedia

    en.wikipedia.org/wiki/Air_quality_guideline

    The reports provide guidelines intending to give guidelines to reduce the health effects of air pollution. [2] The guidelines stipulate that PM 2.5 should not exceed 5 μg/m 3 annual mean, or 15 μg/m 3 24-hour mean; and that PM 10 should not exceed 15 μg/m 3 annual mean, or 45 μg/m 3 24-hour mean. [2]

  4. Simon–Ehrlich wager - Wikipedia

    en.wikipedia.org/wiki/Simon–Ehrlich_wager

    Hence, there can be an "optimal level of pollution," which accepts some increases in certain kinds of pollution in a way that increases overall wellbeing while acknowledging that any increase in pollution is nevertheless a cost that must be considered in any such calculation.

  5. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Growing evidence that air pollution—even when experienced at very low levels—hurts human health, led the WHO to revise its guideline (from 10 μg/m 3 to 5 μg/m 3) for what it considers a safe level of exposure of particulate pollution, bringing most of the world—97.3 percent of the global population—into the unsafe zone.

  6. Environmental economics - Wikipedia

    en.wikipedia.org/wiki/Environmental_economics

    Increasing the costs of polluting will discourage polluting, and will provide a "dynamic incentive", that is, the disincentive continues to operate even as pollution levels fall. A pollution tax that reduces pollution to the socially "optimal" level would be set at such a level that pollution occurs only if the benefits to society (for example ...

  7. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    It provides them with advice on how to protect their health during air quality levels associated with low, moderate, high and very high health risks. The AQHI provides a number from 1 to 10+ to indicate the level of health risk associated with local air quality. On occasion, when the amount of air pollution is abnormally high, the number may ...

  8. Marginal abatement cost - Wikipedia

    en.wikipedia.org/wiki/Marginal_abatement_cost

    Abatement cost is the cost of reducing environmental negatives such as pollution. Marginal cost is an economic concept that measures the cost of an additional unit. The marginal abatement cost, in general, measures the cost of reducing one more unit of pollution. Marginal abatement costs are also called the "marginal cost" of reducing such ...

  9. Air pollutant concentrations - Wikipedia

    en.wikipedia.org/wiki/Air_pollutant_concentrations

    In other words, industrial air pollution sources located at altitudes well above sea level must comply with significantly more stringent air quality standards than sources located at sea level (since it is more difficult to comply with lower standards). For example, New Mexico's Department of the Environment has a regulation with such a ...