tailieunhanh - Smog - A REPORT TO THE PEOPLE Episode 3

Tham khảo tài liệu 'smog - a report to the people episode 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | On November 12 1970 the highly respected legislative analyst Mr. A. Alan Post called attention to the TAC report in a lengthy statement on the ARB submitted to the Subcommittee on Air Pollution of the Assembly Transportation Committee. Mr. Post drew a distinction between short-term management standards based on technical economic and social feasibility and ambient air quality standards defined as goals to be reached over a longer period of time. While he did not go as far as the TAC report Mr. Post recommended important changes in the organization and functions of the ARB and he concluded that logically the Board should undertake an intensive effort to reduce the emissions of used vehicles emphasis ours in California . . . We now know that control of new car emissions is not capable of producing significant improvement in air quality in the Los Angeles and San Francisco areas within a matter of years8 . If any significant short-term improvement is to be made in air quality during the next several years it will have to be accomplished by controls on vehicles now in operation emphasis Mr. Post s . The ARB itself recognizes the importance of older cars in urban areas. Following the guidelines set by the California Legislature in the Pure Air Act of 1968 as amended in 1969 the Board in 1970 accredited one exhaust control device for 1955-1965 In cooperation with the Division of Highways the ARB is also testing motor vehicles burning liquid petroleum gas or natural gas as a fuel. Several such systems were approved as meeting the Board s 1974 exhaust emission standards and therefore eligible for exemption from the 7-cent per gallon state tax as provided by the Legislature in 1970. The drive to control exhaust emissions from older cars was given additional weight by Governor Reagan s Special Message to the Legislature on Smog March 11 1971 . The Governor s message called for authority to require immediate installation of a device to control nitrogen oxide discharges