91.   Russian aviation officials, however, insist it is safe and meets international air standards.

92.   Some provinces could become pollution havens due to the lack of national air standards, he said.

93.   The Clean Air Act authorizes the EPA to issue air quality standards to protect human health.

94.   The diesel decision came a day after the Supreme Court upheld new air pollution standards for smog-causing ozone and soot, or diesel exhaust particulate.

95.   The FAA is trying to improve ties and cooperation with foreign countries on what can be a confusing patchwork of international air safety standards and regulations.

96.   The one proposed for Chicago is the first to try to help metropolitan areas meet air quality standards, but still expand economic development.

97.   The Supreme Court let a lower court decision stand Monday that allowed air pollution standards for Indian land that are tougher than the rules for adjacent state land.

98.   Passenger traffic decreased by five percent, and freight traffic by eight percent, said the group, a UN agency which sets international air transport standards and regulations.