Kev nyab xeeb ntawm Nitrogen Dioxide

Txhawm rau kom muaj kev nyab xeeb, cov neeg ua haujlwm kuaj yuav tsum hnav lub tshuab ua pa thiab tsom iav. Yog tias qhov concentration siab tshaj 20 ppm, kev khiav tawm yuav tsum pib tam sim ntawd. Nyob rau hauv cov ntaub ntawv ntawm cov cuab yeej tsis ua hauj lwm, saib xyuas qhov tseem ceeb ntawm cov khoom siv hluav taws xob ruaj khov thiab lub neej ntev (feem ntau yuav tsum tau hloov txhua 2-3 xyoos). Rau kev soj ntsuam emissions, lub sij hawm ua piv txwv yuav tsum npog tag nrho cov voj voog ntau lawm, thiab cov ntaub ntawv kaw tseg yuav tsum tsis pub tshaj 1 feeb.