Puas yog cov tshuaj tua kab mob pentachloronitrobenzene (PCNB) raug tshem tawm hauv Asmeskas kev sau npe tshuaj tua kab?
Tsis ntev los no, US Environmental Protection Agency (US EPA) tau tshaj tawm tsab ntawv txiav txim siab ntawm Pentachloronitrobenzene (PCNB), pom zoo kom tshem tawm tag nrho cov ntawv sau npe rau cov tshuaj tua kab no. Qhov kev txiav txim siab yog nyob rau lub sijhawm tawm tswv yim rau pej xeem txog thaum lub Kaum Ib Hlis 22.
Yog vim li cas rau disabling:
Raws li Tsoom Fwv Teb Chaws Tshuaj tua kab, Fungicide, thiab Rodenticide Act (FIFRA), US EPA yuav tsum rov ntsuam xyuas cov tshuaj tua kab uas tau sau npe txhua 15 xyoo.
Xyoo 2021, Tebchaws Asmeskas EPA tau ntsuas qhov kev pheej hmoo ntawm PCNB hauv thaj chaw ecological thiab tib neeg kev noj qab haus huv ib puag ncig, raws li hauv qab no:
Hais txog kev pheej hmoo ecological:
Kev phom sij rau ntses, amphibians, dej invertebrates, dej nroj tsuag, noog, tsiaj reptiles, tsiaj nyeg thiab muv;
Raws li txoj hmoo ntawm ib puag ncig thiab kev thauj mus los, nws tuaj yeem txiav txim siab tias PCNB thiab nws cov khoom degradation tseem nyob hauv ib puag ncig, thiab muaj kev pheej hmoo ntawm bioaccumulation rau cov kab mob hauv cov khoom noj hauv dej.
Tsis tas li ntawd, cov seem ntawm PCNB tau pom nyob rau hauv av, nroj tsuag, huab cua, dej thiab tsiaj nyob deb ntawm thaj chaw siv.
Tib neeg kev noj qab haus huv txaus ntshai:
Muaj peev xwm tsis-carcinogenic txaus ntshai ntawm kev raug rau PCNB tau txiav txim siab raws li cov txiaj ntsig tsis zoo ntawm cov thyroid, suav nrog cov neeg sawv cev raug rau PCNB vim yog cov tshuaj tsuag drift, thiab cov neeg siv vim yog daim ntawv thov ncaj qha hauv tsev kawm qib siab thiab kev ua kis las;
Thaum siv rau cov qoob loo xws li paj ntoo thiab ntoo ornamentals, qhov kev pheej hmoo ntawm kev cuam tshuam ntawm cov neeg ua haujlwm rau PCNB tau txiav txim siab thaum thiab tom qab thov;
Cov impurities hauv PCNB cov khoom siv thiab cov khoom tsim tawm kuj tseem cuam tshuam nrog kev pheej hmoo rau tib neeg kev noj qab haus huv.
Raws li cov lus hais saum toj no tseem ceeb ecological txaus ntshai thiab tib neeg kev noj qab haus huv txaus ntshai tshwm sim los ntawm PCNB, US EPA thov kom tshem tawm tag nrho cov npe ntawm PCNB.
