Particulate matter , particularly black carbon from cooking fires and coal-fired plants in india , is the real culprit .
悬浮微粒、特别是印度地区，生产和生活燃煤所带来的炭黑，才是真正的元凶。
However , both are less stringent than the proposed us zone , and neither seeks to limit deadly particulate emissions .
然而，这两个的严格程度都低于被提议的美国区，而且都没限制致命微粒的排放量。
Beijing 's official air monitors only measure relatively coarse particulate matter , whereas the u.s. system monitors smaller , deadlier dust particles .
北京官方的空气检测只测量相对粗糙的微粒，而在美国的系统里，测量的是更小、更有害的颗粒。
According to this reuters article , recent analysis of satellite data suggests asia has contributed a particularly high amount of particulate matter .
据路透社这篇报道说，最近对卫星数据进行的分析显示，对于排入大气中的微粒，亚洲占了很大的一部分。
Wmo scientists assess and monitor air pollutants such as ground-level ozone , smog , particulate matter , sulfur dioxide and carbon monoxide .
