Producers switched to methyl tertiary butyl ether (MTBE), but it has been implicated in contaminating groundwater, and state governments are banning it.
英
美
- 制造厂商曾经改用甲基三级丁醚(MTBE),但这种化学物质可能与地下水污染有关,因此美国政府已禁止使用。