波尔图维尔霍居民面临亚马逊森林大火带来的健康风险, PM2.5 含量是世卫组织规定限量的11倍. Porto Velho residents face health risks from Amazon forest fires, with PM2.5 levels 11 times WHO's limit.

巴西Porto Velho居民因亚马逊森林火灾浓烟而面临健康风险。 Residents in Porto Velho, Brazil, face health risks due to a thick cloud of smoke from Amazon forest fires. PM2.5水平达到每立方米56.5微克,是卫生组织极限的11倍,造成呼吸困难和增加健康风险。 PM2.5 levels reached 56.5 micrograms per cubic meter, 11 times the WHO's limit, causing breathing difficulties and increasing health risks. 自1月以来,亚马逊地区发生了42 000多起森林火灾,是近20年来最高的,当局怀疑农民清理土地会发生非法火灾。 The Amazon has experienced over 42,000 forest fires since January, the highest in almost two decades, with authorities suspecting illegal fires by farmers clearing land.