iVIGA Tap Factory Supplier
Chisokonezo chamadzi amtovu chakhala muvuto kwa miyezi yopitilira iwiri, ndipo pamapeto pake zimatsimikiziridwa kuti “wopalamula” kutanthauza kuti malata osungunula pakhosi a mkuwa amakhala ndi mtovu. Gulu logwira ntchito lomwe linakhazikitsidwa ndi boma la Hong Kong kuti lifufuze kutsogolera kwakukulu m'madzi akumwa linatulutsa zotsatira zoyambirira pa September 25. Zinapezeka kuti zitsanzo za malo owotcherera mkuwa ku Kang Ching House, Mudzi wa Kai Ching uli 41% wa lead, 585 nthawi zambiri kuposa muyezo waku Britain. Ogwira ntchitoyo sanayankhe ngati kontrakitala yemwe akukhudzidwayo adzayankha mlandu kudzera munjira zamalamulo, koma adangopereka malingaliro angapo, kuphatikizapo kugwiritsa ntchito chapakati kugula zipangizo kuwotcherera m'tsogolo, kuti muchepetse kugula kolakwika kunsi kwa mtsinje.
M'miyezi iwiri yapitayi, gulu linayendera gawo lachiwiri la mudzi wa Qiqing ndi mudzi wa Kwai Lian komwe madzi akumwa amapitilira muyezo., ndi kuchotsedwa kuposa 100 zigawo zamkati zoperekera madzi, kuphatikiza 44 mapaipi amkuwa, 28 zipata, ndi 3 Madzi mita, 12 mabomba ndi 47 malo owotcherera adatumizidwa ku labotale kuti akayesedwe mosiyanasiyana, pomwe mapaipi azitsulo zosapanga dzimbiri adagwiritsidwa ntchito ku Hong Fuk Village, Yuen Long, kwa mayeso oyerekeza.
Gululo lidati popeza layendera matanki amadzi apansi panthaka ndi matanki amadzi apansi padenga la gawo lachiwiri la Mudzi wa Kai Ching ndi Mudzi wa Kwai Lian., zinapezeka kuti panali zochepa kuposa 1 microgram ya lead pa lita imodzi ya madzi, ndipo mipope yamadzi yochokera pansi pa nthaka kupita pamwamba padenga inali yopangidwa ndi mapaipi achitsulo. Palibe kuwotcherera komwe kumakhudzidwa, kotero pali chifukwa chokhulupirira kuti madzi operekedwa kuchokera ku mapaipi amadzi a boma kupita ku nyumba ndi opanda mtovu. Cholinga chachikulu cha kafukufukuyu ndi mapaipi amkuwa omwe amatsika kuchokera padenga mpaka pansi.
Wogwira ntchitoyo Chen Hanhui adalongosola kuti kuyesa kumasulidwa ndikulowetsa madzi mu zigawo za 24 maola kuti awerengere kuchuluka kwake komanso mphamvu yokoka ya mtovu yotulutsidwa kuchokera kuchigawo chilichonse cha njira yonse yoperekera madzi. Zotsatira za mayeso otulutsidwa zidapeza kuti mumayendedwe amadzi a Kang Ching House, Kai Ching Village, kutsogolera kunatulutsidwa pazipata za aloyi zamkuwa, mabomba, ndi mapaipi amkuwa/malo osokeretsa ofewa okhala ndi mainchesi ocheperako 76 mm. Mwa iwo, kumasulidwa kuchuluka kwa malo soldering anali apamwamba kwambiri. Kusanthula kwazinthu kunawonetsa kuti zomwe zidatsogolera zinali 41%, zomwe zinali 585 nthawi zomwe zimatsogolera 0.07% mu standard British.
Ogwira ntchitoyo adatsimikizanso kuti madzi akumwa a m'midzi iwiriyi adutsa muyeso ndipo sanayambitsidwe ndi kuyika ma plumbing a copper alloy.. Gululo lidachita kafukufuku wasayansi wa isotopu ya lead ndipo lidapeza kuti ma isotopu otsogola a lead-tin soldering materials ndi copper alloy plumbings mwachiwonekere ndi a magulu awiri osiyana., ndi isotopu ya zida zogulitsira zokhala ndi lead ndi zitsanzo zamadzi zokhala ndi lead mochulukira.. Mwanjira ina, kutsogolera m'madzi kumachokera ku zipangizo zowotchera ndi malata.
Kuphatikiza apo, ogwira ntchitoyo adapeza kuti makontrakitala ena asiya ntchito zawo. Mageti ndi ma faucet omwe adayikidwa m'malo ena okhala ndi anthu sanali ofanana ndi omwe adatumizidwa ku dipatimenti ya Water Supplies.. Mlembi wa gulu ndi wothandizira wotsogolera wa Water Supplies Department, Leung Chung-li, adanenanso kuti mtundu wa chosinthira pachipata chomwe chimagwiritsidwa ntchito ku Kai Ching Village ndi chosiyana ndi chomwe chidalengezedwa, ndipo zomwe zimatsogolera pachipata chosinthira sizikugwirizana ndi muyezo waku Britain. Gululo lizitsatira ndi wothandizira zinthu zofunika. Osaletsa kuchotsa pamndandanda wovomerezeka.
Pofuna kupewa kupezeka kwa lead m'madzi akumwa, ogwira ntchitoyo adapereka malingaliro angapo, kuphatikizapo kuyendera malo kokwanira komanso kokhazikika kochitidwa ndi anthu oyenerera a m’Dipatimenti Yomangamanga; kugwiritsa ntchito kuyezetsa kutsogolera mwachangu kapena ma X-ray fluorescence spectrometer pakuwotcherera malo; ndi kufunikira kwa chiphatso Opanga mapulagi ndi anthu ovomerezeka awonjezera magawo anayi atsopano pakuyezetsa kwaubwino wa madzi a dongosolo loperekera madzi lamkati lomwe lamalizidwa kumene., kutanthauza kutsogolera, Chromium, cadmium ndi nickel; Ndikofunikira kuti a Housing Authority aphunzire kugwiritsa ntchito zida zowotcherera zomwe zagulidwa pakati; ndipo akulangizidwa kuti bungwe la Water Authority liunikenso malamulo oyenera.
Gulu logwira ntchito likuyembekezeka kufalitsa lipoti lake lomaliza la kafukufuku mkatikati mwa Okutobala. Gululo linayesanso kutulutsidwa kwa zitsulo zina zitatu zolemera, kuphatikizapo cadmium, chromium ndi nickel kuchokera kumadera onse a madzi. Zotsatira zikuwonetsa kuti nickel adapezeka kukhitchini komanso matepi amakina ochapira agawo la Kangqing House ku Kai Ching Village.. Komabe, pali madzi ochepa chabe mumpopi, ndipo fayiloyo imatha kutsukidwa pakatha mphindi imodzi kapena ziwiri. Zotsatira zoyeserera za cadmium ndi chromium pachida chilichonse zili pansi pamlingo wozindikirika, kuti, zomwe zili ndi zochepa kuposa 1 microgram pa lita imodzi ya madzi.
