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CLEAN AIR AND TRANSPORTATION: THE FACTS MAY SURPRISE YOU.
| 题名： | CLEAN AIR AND TRANSPORTATION: THE FACTS MAY SURPRISE YOU. |
| 作者： | Koontz-M |
| 关键词： | AIR-QUALITY; AIR-QUALITY-STANDARDS; AIR-QUALITY-MANAGEMENT; CARBON-MONOXIDE; OZONE-; TRANSPORTATION-SECTOR; AUTOMOBILE-INDUSTRY; EMISSIONS-; POLLUTANTS-; EMISSION-SOURCES; ELECTRIC-AUTOMOBILES; LOW-EMISSION-VEHICLES |
| 摘要： | The transportation sector, and especially the automobile industry, has done its part in the quest for better air quality. Carbon monoxide (CO) levels were down 37% from 1987 to 1996. During the same period, the average number of monitored exceedances of the CO standard fell a staggering 92% nationally. Ozone levels are down as well, and gross emissions levels have dropped for pollutants from mobile sources. As advances in transportation technology have held emissions in check, other strategies associated with transportation have found little success despite very high costs. States have accrued enormous air quality benefits from lowered vehicle-emission standards and more modest, but nevertheless important gains from developments such as reformulated gasoline and inspection and maintenance programs. The common denominator among these successes has been technology. Low-emission, zero-emission, and electric vehicles are also expected to have an effect on future regional emissions and the push toward attainment. |
| 总页数： | Public Roads. 1998/07. 62(1) pp42-46 (5 Phot., 12 Ref.) |
| 报告类型： | 科技报告 |
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