...ambient air quality standards define levels of air quality which the Administrator judges necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. Such standards are subject to revision, and additional primary and secondary standards...

...ambient air quality standards define levels of air quality which the Administrator judges necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. Such standards are subject to revision, and additional primary and secondary standards...

...ambient air quality standards define levels of air quality which the Administrator judges necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. Such standards are subject to revision, and additional primary and secondary standards...

...Pennsylvania: 5.0 wg/m That standard, according to the Environmental Protection Agency, is adequate to protect the public welfare from any known or anticipated adverse effects associated with the presence of oxides of nitrogen in ambient air. Liquid T ILTP The largest quantity of liquid effluents, 240 x 10...

...the attainment and maintenance of which in the judgment of the Administrator, based on such criteria, is requisite to protect the public welfare from any...presence of such air pollutant in the ambient air. Such secondary standards may be revised in the same manner as promulgated. ( July 14, 1955, ch. 360,...

...those required to protect the public health. Secondary ambient air quality standards are those required to protect the public welfare from any known or anticipated adverse effects. Table 11.4 lists EPA's standards for certain pollutants. Within nine months after promulgation of ambient...

...Quality Standards promulgated by the Environmental Protection Agency. These standards have been set to protect the public welfare from any known or anticipated adverse effects of air pollutants in the ambient air. The index is based upon a combination of pollutants and can include...

...the attainment and maintenance of which in the judgment of the Administrator, based on such criteria, is requisite to protect the public welfare from any...presence of such air pollutant in the ambient air. Such secondary standards may be revised in the same manner as promulgated. IMPLEMENTATION PLANS SEC....

...ambient air quality standards define levels of air quality which the administrator judges necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. . . . The promulgation of national primary and secondary standards shall not be considered...

...that the Administrator of EPA should set secondary standards at levels that he judges are necessary to "protect the public welfare from any known or anticipated adverse effects" of a pollutant. [Emphasis added] The proposed standards evidence a tendency on the part of the Administrator...