the population is assessed according

    • 871 posts
    May 16, 2022 4:12 AM EDT

    the population is assessed according to sanitary standards MPC maximum permissible concentrations of atmospheric pollution of chemical and biological substances This benchmark guarantees compliance, thus having no direct impact. or indirectly on the health of the population and living conditions for some substances

     

     

     

     

    อ่านเพิ่มเติม โรงเรียนบ้านควนลำภู
    นานาสาระ น้ำเสีย