BBC 头条追踪 4月1日 03:19 清迈空气污染：健康危机与可交易的东南亚气候风险敞口 'My six-year-old has nosebleeds': Chiang Mai air pollution sparks health fears The Thai city now ranks as one of the world's most polluted, as fires engulf the surrounding countryside. FG 100 读报告 →