Experiment 6

RA8749 or Philippine Clean Air Act of 1999

any alteration of the physical, chemical and biological properties of the atmospheric air, or any discharge thereto of any liquid, gaseous or solid substances that will or is likely to create or to render the air resources of the country harmful, detrimental, or injurious to public health, safety or welfare or which will adversely affect their utilization for domestic, commercial, industrial, agricultural, recreational, or other legitimate purposes.

Anthropogenic

Dominant source of air pollutants in the atmosphere of areas primarily undergoing industrialization.

Stationary Sources

refer to any building or immobile structure, facility or installation which emits or may emit any air pollutant, and may be defined generally as individual point (point source) of air emissions (e.g. smokestacks).

Mobile Sources

any vehicle propelled by or through combustion of carbon-based or other fuel, constructed and operated principally for the conveyance of persons or the transportation of property or goods.

Area Sources

differs from stationary sources in a way that the source of air emissions is not confined to a discrete point or points of emissions

Examples: construction activities and unpaved road ways

An index determined by calculating the degree of pollution in the city or at the monitoring point and includes five main pollutants:

▪ Particulate matter

▪ Ground level ozone (O3 )

▪ Sulfur dioxide (SO2 )

▪ Carbon monoxide (CO)

▪ Nitrogen dioxide (NO2 )

Good

Numerical Value: 0-50

Good

Air quality is considered satisfactory, and air pollution poses little or no risk.

Moderate

Numerical Value: 51-100

Moderate

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Unhealthy for Sensitive Groups

Numerical Value: 101-150

Unhealthy for Sensitive Groups

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Unhealthy

Numerical Value: 151-200

Unhealthy

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Very Unhealthy

Numeric Value: 201-300

Very Unhealthy

Health warnings of emergency conditions. The entire population is more likely to be affected.

Hazardous

Numeric Value: 301-500

Hazardous

Health alert: everyone may experience more serious health effects.