谡 ʾ  ް ִ.  ÷  Ż ġƿ ؼ ްϰ  ϰ 鼭 ֹε ֿ   谡 ٴϱ , ī ɳĿ   600  ̻ ķ  óߴ.  ֡   濡   ֹε ū  ް ִ. ̷ , ֱ   ǰ Ѵٴ  ǥǾ ָް ִ.

ֱ (POSTECH) ̱ Ϲб(Harvard University),  б(Yale University)  м 'ȯ濬(Environmental Research)' ,       츮 ǰ ǿ ĥ  ִٴ   ǥߴ. (O3) ǥ  õ   ȯ ߴ   ȴٰ ˷ ִ.    ؽ  ް ִ ̱ ĶϾ   ָߴ.  ĶϾֿ ӵ   ֿ ÿ  ϴ  ִ      31% پ, Ϻ   .   2009~2015 ĶϾ   Ϻ ִ 8ð    ȭߴ.  ,  Ⱓ       ƴϾ Ⱓ 1.18ppb  Ҵ  巯. Ҿ          11~4(0.79 ppb)   5~10(1.73 ppb)   Ѵٴ ǰ       ġ ٴ  ߰ߴ.  "̹     ȣ ȯ ϴ  Ųٴ    ִ" ߴ.     ȯк  "̹     ȯ å  ȭ   ִ  ̷ Ѵٴ  ûѴ" ߴ.
ĺȭ, η ǰ  ĺȭ  ϴ  ̻ İ  ǰ ū ǿ ģٴ   ؼ ǥǰ ִ.  7     6 ȸǿ ȯȹ(United Nations Environment Programme, UNEP) ĺȭ ۹  ȭϴ ̶   ǥߴ.  ۼ   ij б(University of Newcastle upon Tyne) ̺ ̾(David Graham) ڽý Ͼ  "ĺȭ   µ  η ǰ ϴ ۹ ȭ Ȯ Ѵ" ߴ. 2018 ̱ Ż б(Massachusetts Institute of Technology, MIT)  м '̱пȸ(Proceedings of the National Academy of Sciences of the United States of America, PNAS)'  ĺȭ  Űǰ ũ ģٴ    ǥߴ.  2002~2012 ̱ 漾(Centers for Disease Control and Prevention, CDC) ̱  263 , 200    Űǰ 縦 м, ĺȭ  µ Ҽ  ,   Ѵٴ  ߰ߴ.