Gordian M E, Guay G
Department of Health and Human Services, Municipality of Anchorage, Alaska 99519-6650, USA.
Alaska Med. 1995 Jan-Mar;37(1):25-8, 36.
Alaska Department of Environmental Conservation took indoor and ambient air samples during the winter of 1992-93 in Fairbanks. The samples showed a significant increase in the level of benzene in the air between December and February. The highest levels occurred in indoor air and exceeded workplace standards in garages. These findings were corroborated by NIOSH and OSHA personal monitoring studies done at the same time in Fairbanks and by blood samples taken by Centers for Disease Control and Prevention from workers exposed to gasoline in December and February. The blood samples showed a 300 percent increase in the amount of benzene in worker's blood after MTBE was taken out of gasoline. The most likely cause of this air pollution is gasoline evaporation and exhaust emissions. The benzene content of Alaska gasoline is 5 percent which is the highest in the nation. In view of these findings the Environmental Protection Agency is funding a new study of indoor air organic compounds including benzene in Anchorage, Alaska.
1992 - 1993年冬季，阿拉斯加环境保护部在费尔班克斯采集了室内和环境空气样本。样本显示，12月至2月期间空气中苯的含量显著增加。最高含量出现在室内空气中，且超过了车库的工作场所标准。美国国家职业安全与健康研究所（NIOSH）和美国职业安全与健康管理局（OSHA）同期在费尔班克斯进行的个人监测研究，以及疾病控制与预防中心在12月和2月采集的接触汽油工人的血样，都证实了这些发现。血样显示，汽油中甲基叔丁基醚（MTBE）被去除后，工人血液中的苯含量增加了300%。这种空气污染最可能的原因是汽油蒸发和尾气排放。阿拉斯加汽油的苯含量为5%，是全美最高的。鉴于这些发现，美国环境保护局正在资助一项关于阿拉斯加安克雷奇室内空气有机化合物（包括苯）的新研究。
