These kinds of pollutants kill up to 7 million people a year worldwide, says Dan Greenbaum, president of the Health Effects Institute.

健康影响研究所所长丹·格林鲍姆表示，这类污染物每年造成全球高达7百万人死亡。

These kinds of pollutants kill up to 7 million people a year worldwide, said Dan Greenbaum, president of the Health Effects Institute.

全球每年高达700万人因上述这些种类的污染物死亡，健康影响研究所所长丹·格林鲍姆说道。

Daniel S. Greenbaum, president of the Health Effects Institute, a nonprofit research organization that is funded by the E.P.A. and industry groups, acknowledged there was uncertainty around the effects of fine particulate matter exposure below the standard.

丹尼尔·格林鲍姆是健康影响研究所的所长，这是环保署和行业团体联合资助的一个非盈利研究组织，格林鲍姆承认，低于标准水平的细颗粒物暴露量的影响依然存在不确定性。