so after 15 yrs, avr. lifetime of big cities should down ~2.5 yr?

so after 15 yrs, avr. lifetime of big cities should down ~2.5 yr?

所有跟贴·加跟贴·新语丝读书论坛

送交者: whatistruth 于 2015-03-04, 10:18:39:

回答: Conclusion: PM2.5 = 30 shortens life expectancy 2.5 yr, active smoking 7.8 yr 由 JZ 于 2015-03-03, 21:03:12:

No. Life time exposure of +30 FM2.5 results in -2.5 yr LE (无内容) - JZ (0 bytes) 2015-03-04, 12:37:25 (773245)