31/10/2026Veri Anla Kielezo cha Ubora wa Maji (Water Quality Index, WQI) ni kiashiria cha ubora wa mazingira kinachowakilisha ubora wa maji ya juu ya ardhi katika eneo fulani kwa alama changamano; katika utafiti huu, WQI inapoongezeka ubora wa maji huboreka na uchafuzi wa maji hupungua. Tazama zaidi
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