Dokar rigakafin guba ta 1990
Dokar Rigakafin Guba ta 1990 ( PPA ) wata doka ce ta tarayya ta Amurka wacce ta ƙirƙiri manufofin ƙasa don haɓaka rigakafin gurɓatawa ko raguwa a wuraren gurɓatawa a duk inda zai yiwu. Dokar ta kuma fadada Inventory Release Inventory (TRI), shirin ba da rahoton sharar gida wanda Hukumar Kare Muhalli ta Amurka (EPA) ke gudanarwa.

Dokar Rigakafin Guba ta mayar da hankali kan masana'antu, gwamnati, da kuma hankalin jama'a kan rage yawan gurbatar yanayi ta hanyar sauye-sauye masu tsada a samarwa, aiki, da amfani da albarkatun kasa. Sau da yawa ba an samun damar rage tushen ba saboda yawancin ƙa'idodin muhalli da ake da su suna mayar da hankali kan sharar gida da zubarwa. Sannan Kuma Sakamakon haka an mayar da hankali kan albarkatun masana'antu don biyan buƙatun jiyya da zubar da su.

Aiwatarwa 
Ƙoƙarin EPA don haɓaka ayyukan rigakafin sun haɗa da hanyoyin ba da izinin sharar gida, bita kan ƙa'idodi, taimakon fasaha ga masana'antu da hukumomin gwamnati, da tilastawa.  Kuma Hukumar ta kuma yi kokarin danganta rigakafin gurbatar yanayi da bayanan jama'a game da sinadarai, kamar a cikin shirin TRI.

Duba wasu abubuwan 

 Green sunadarai
 Gurbacewa a Amurka

Manazarta

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