Masu bincike a Cibiyoyin Kula da Cututtuka na Inganta cututtukan Amurka (CDC) sun saki binciken da ya nuna cewa matan Amurka - musamman ma wadanda ke dauke da ciwon iodine -suna da haɗari na hypothyroidism saboda yawancin da ake gani a cikin perchlorate.
Domin shekaru, akwai damuwa game da sakamakon perchlorate akan thyroid. Wannan batun shine mai kawo rigima, duk da haka, a matsayin gwamnatoci na gwamnati, kungiyoyin muhalli, masu ba da shawara ga jama'a, da sojoji, da masu kare hakkin dangi da ke da alhakin gurbatawa sun sake komawa baya a kan ainihin sakamako na lafiyar, ka'idodin kula da lafiyar, da kuma yadda ake yarda da perchlorate abincinmu da ruwa.
A cikin binciken daya, Cibiyar Ilimin Kimiyya ta kasa ta ƙaddara cewa perchlorate yana shafar ƙwayar thyroid na shado iodine, amma sakamakon zai faru ne kawai tare da tasiri ga babban matakin perchlorate. Wannan binciken na CDC, duk da haka, ya nuna cewa ba wai kawai furo-fom din ba ne kawai, amma, a karo na farko, ya nuna cewa ko da ƙananan matakan da aka ƙaddamar da perchlorate (matakan da dama ga jama'ar Amurkan) na iya haifar da cututtukan lafiyar lafiyar jikin ka.
Perchlorate wani nau'i ne na samar da man fetur da aka gano don gurɓata sassa na ruwan sha na kasar, da 'ya'yan itatuwa, kayan lambu da kuma hatsi da ruwa mai lalata, da madara da samfurori daga shanu da ke cike da ciyawa. Zai iya hana ƙwayar thyroid ta iya rage iodine daga jini.
Iodine wani ginin gine-gine na hormone thyroid. Ƙananan ƙwayar iodine, da / ko gland shine rashin iyawa don yin amfani da iodine zai iya hana thyroid daga samar da hormone thyroid, wanda zai haifar da maganin thyroid, ko hypothyroidism.
Hypothyroidism na iya haifar da kwarewar nauyi, gajiya, damuwa, rashin haihuwa, rashin zubar da ciki, kuma an dauke shi a matsayin mai hadari ga cututtukan zuciya. Baban iyaye mata da suke hypothyroid suna fuskantar haɗari na matsalolin ƙwarewa da ci gaba, ko kuma, a lokuta mafi tsanani, cretinism da nakasa haihuwa.
Binciken na CDC ya dubi maza da mata 2,299, masu shekaru 12 da haihuwa, waɗanda suka halarci daya daga cikin Neman Harkokin Kula da Lafiya ta Nutrition da Nutrition (NHANES).
Sun kimanta ƙwayoyin perchlorate a cikin fitsari, tare da thyroxone thyroxine (T4) da kuma hormone thyroid-stimulating (TSH) a cikin jini. Abin da masu bincike suka gano shine kasancewar perchlorate ya kasance tsinkayyar matakan hormone thyroid, amma ba maza.
Sai masu bincike suka mayar da hankali kan mata da matsayi mai girma-iodine tare da rukuni na iodine. A cikin mata masu girma-iodine matakan, sun sami wata alaka tsakanin haɗin perchlorate da TSH. Amma a cikin kananan-iodine mata, akwai dangantaka mai karfi tsakanin matakan perchlorate da girman TSH da ƙananan T4, alamar hypothyroidism.
Mata masu juna biyu suna cikin haɗari saboda ciwon ciki yana haifar da mummunan yanayin aikin ka, kuma isasshen aikin maganin ka da muhimmanci don kula da daukar ciki da kuma kauce wa matsalolin ko kuma ci gaba a cikin jariri. Mace da suka riga sun yi amfani da hypothyroid sun kasance mafi haɗari saboda sakamakon perchlorate na iya kara damuwa da hypothyroidism na yanzu.
A cewar CDC:
Tashi talatin da shida na mata a Amurka suna da matakan urinary urinary žasa fiye da 100 μg / L, wanda shine matakin ƙananan iodine wanda ake amfani dashi don binciken. Dubi wadanda ke da matakan danin din dinin, da mata masu juna biyu, da wadanda ke kan iyakokin jigilar ruwa a yanzu, Kungiyar Ma'aikatar Muhalli ta tabbatar da cewa kimanin mata miliyan 44 na Amurka suna da haɗari daga haɗarin perchlorate.
Yaya yawancin ƙwayar cuta yake da haɗari?
Bisa ga CDC, matakin da aka gano a cikin fitsari yana da digiri 2.9 a kowace lita (zane-zane a kowace lita yana daidai da kashi daya da biliyan). Tare da ƙaddarar tsabar fitsari a kimanin lita daya da rabi kowace rana, wannan yana nufin kusan biyar micrograms na perchlorate kowace rana ana amfani. Ko da a wannan ƙananan matakin, akwai abubuwan da ke cikin lalacewar da aka gani akan maganin ka. Matsayi na "lafiya" na tarayya, duk da haka, kusan kusan sau 10 wannan kashi.
Bisa ga Kungiyar Harkokin Gudun muhalli, CDC ta gano cewa matakan perchlorate a cikin ruwa a matsayin kasa da kashi uku a kowace biliyan (ppb) - zauren teaspoon daya na ruwa a cikin kogin Olympics - na iya samun tasirin lafiyar mata.
Menene Za Ka Yi?
Abin takaici, a matakin mabukaci, yana da matukar wuya a guje wa perchlorate, saboda yana cike da abinci da ruwa. Misali:
- Ɗaya daga cikin bincike na muhalli (EWG) binciken da aka gano a cikin fiye da rabi duk samfurori da kayan samfurin hunturu.
- Wani bincike na EWG ya sami perchlorate a cikin 31 na 32 samfurori na madara a California
- Ofishin Abincin da Noma na California ya samo perchlorate a cikin 32 daga 32 samfurori na samfurori
- Dangane da gwaje-gwaje da aka gudanar a karkashin Dokar Kulawa ta Ƙasashen Ba da Ƙaƙƙargiyar ta EPA, akalla 160 tsarin ruwa na jama'a a jihohi 22 an gurbata shi da perchlorate
- Ana iya samuwa a cikin kayan gida da kuma shigo da kayayyaki, da matakan inabi, raspberries, apricots, melons, letas, tumatir, Basil, Kale, alayyafo, da bishiyar asparagus.
- Bugu da ƙari, bisa ga CDC, kashi 69 cikin 100 na abincin abincin da aka sha da 1,090 da aka gwada sun gano perchlorate.
Bisa ga CDC, wannan yaduwa a cikin ruwanmu da abinci yana nufin cewa irin nahiyar Amurka na da kashi ɗaya na rabi da kashi dari da rabi.
Don taimakawa kare karoid dinka, zaka iya tabbatar da cewa kai ba daya daga cikin kusan hudu daga cikin 10 mata da rashi na iodine ba. Kyakkyawan yau da kullum yawancin da kuma iodine zai iya tabbatar da cewa kana samo aidin da kake bukata. Amma, tunawa, idan kun kasance daya daga cikin mutanen da ba su da ƙarancin Idin, zazzafar ƙwayar iodine na iya tasowa har ma wors hypothyroidism da yanayin thyroid.
Wannan kuma batun ne wanda yake kira ga aikin ɗan adam. Alal misali, a matakin kasa, babu wani ma'auni na ruwan sha ga perchlorate. Abinda kulawa na kasa kawai shine jagoran FDA wanda ya bada shawarar tsaftacewa a mataki na 24.5 ppb. Kwamitin shawara na tarayya a kan lafiyar yara ya soki hakan sosai, duk da haka, yayi gargadin cewa zai iya haifar da labarun da ke haifar da ƙananan haɗari ga jarirai da yara.
A jihar, kadai jihar cewa a halin yanzu yana da ruwan sha mai kyau don perchlorate Massachusetts, wanda ya kafa su misali a sassa biyu da biliyan a Yuli 2006. A Oktoba 2006, California da New Jersey suna la'akari da misali na shida ppb da biyar ppb .
Tuntuɓi wakilan majalisa ku kuma tura su su bi ka'idodin perchlorate masu tsattsauran ra'ayoyin ku. Kuma ka roki majalisar tarayyarka da ta dauki nauyin tsarin kasa. EWG ya ba da shawarar cewa gwamnatin tarayya ta kafa tsarin ruwan sha ba tare da kashi 0.1 cikin dari ba na biliyan daya na perchlorate.
Har ila yau, ta roki mahukuntan tarayya da su ba da umurni da tsabtace tsararru ta hanyar tsabtace asibitocin soja da kuma shuke-shuke. Yin tsaftacewa na tsabtataccen shafukan yanar gizo da kuma tsaftace kayan ruwa mai gurɓata su ne kawai hanyar da za a rage adadi na perchlorate.
Renee Sharp, wani masanin binciken EWG wanda yayi nazarin sinadaran, yayi magana cewa:
Pentagon da masu kare kwangila, wadanda ke da alhakin yawancin perchlorate a cikin ruwan sha, sunyi matukar damuwa da ka'idodin tarayya, suna jayayya cewa perchlorate ba shi da barazana ga manya lafiya. Wannan sabon binciken ya nuna cewa ko da ƙananan matakai na perchlorate a cikin ruwa ko abinci zai iya samun sakamako mai tasiri a kan matakan kawo a cikin mata. Ba za mu iya watsi da wannan matsalar lafiyar jama'a ba.
> Sources:
> Blount, Benjamin C. et. al. "Harkokin Kiwon Lafiyar Kiwon Lafiyar: Harkokin Harkokin Tsarin Yarin da Matsayin Harsashin Taro a Yara da kuma Adult Men and Women Yayi Rayuwa a Amurka," Cibiyar Harkokin Kiwon Lafiyar Muhalli (EHPB), Cibiyar Harkokin Kiwon Lafiyar Mahalli, Cibiyoyin Lafiya na Ƙasar, Ma'aikatar Lafiya ta Amurka da Ayyukan Dan Adam, An buga Litinin 5, 2006, Online
> "44 Million mata a Hadarin Thyroid Ƙasa Daga Rocket Fuel Chemical," Muhalli Working Group Ɗab'in Ɗab'in.
> Taswirar Ma'aikata na Mahalli