ʻO ka hana ʻana o nā mea wai e hoʻohua ai i ka wai ʻino, a ʻo ka wai ʻino e loaʻa i ka waikawa, ka alkali, ka paʻakai, nā metala kaumaha a me nā mea ʻino ʻē aʻe.No laila, pono ka hoʻomaʻemaʻe wai wai, hiki ke hōʻemi maikaʻi i ka pollution kaiapuni, hoʻomaikaʻi i ka nohona o ke kanaka ...
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