51.   The EPA is mulling a change in clean air standards, which spells trouble for Smoggyland -- Cleveland, Youngstown and environs.

52.   The generators are concentrated in New York City, which fails to meet federal clean air standards.

53.   The eight affected counties where ozone levels exceed federal air quality standards are Harris, Brazoria, Fort Bend, Galveston, Montgomery, Waller, Chambers and Liberty.

54.   The EPA is considering whether to tighten clean air standards.

55.   The letter was submitted at the hearings by the American Lung Association, which obtained a court order to force the EPA to review the air standards.

56.   The metro area is close to falling out of compliance with federal air quality standards.

57.   The move is a sign that the day of compliance with national ambient air quality standards is drawing nearer.

58.   The issue is an important one as Texas ranks near the bottom of the pile in air quality standards.

59.   The law allows for costs to be considered in selecting pollution controls, but not in setting the air quality standards themselves.