NGHIÊN CỨU ĐÁNH GIÁ HIỆN TRẠNG SỬ DỤNG VÀ CHẤT LƯỢNG NƯỚC CẤP SINH HOẠT TẠI XÃ ĐẶNG XÁ, HUYỆN GIA LÂM, THÀNH PHỐ HÀ NỘI

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Tác giả: Mạnh Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Tài nguyên và Môi trường, 2020

Mô tả vật lý: tr.116-125

Bộ sưu tập: Metadata

ID: 312952

Thêm vào giỏ Liên kết toàn văn

Nước sạch đóng vai trò rất quan trọng và là nhu cầu thiết yếu của mỗi người dân. Tuy nhiên, nhiều người dân tại xã Đặng Xá phản ánh về thực trạng đôi khi thiếu nước sinh hoạt hoặc chất lượng nước không đảm bảo như có màu và mùi lạ bất thường. Nghiên cứu đã tiến hành điều tra, khảo sát 30 hộ dân, lấy mẫu nước sinh hoạt tại 11 hộ dân của 10 thôn và khu đô thị Đặng Xá. Các mẫu nước được phân tích 13 thông số, kết quả được so sánh với Quy chuẩn kỹ thuật Quốc gia về chất lượng nước sinh hoạt (QCVN 02:2009/BYT) và Quy chuẩn kỹ thuật Quốc gia về chất lượng nước ăn uống (QCVN 01:2009/BYT) do Bộ Y tế ban hành. Từ các kết quả nghiên cứu cho thấy, hệ thống cấp nước sạch tại xã Đặng Xá, huyện Gia Lâm chưa đáp ứng được nhu cầu sử dụng nước của người dân. Ngoài khu đô thị Đặng Xá, người dân tại các thôn khác trong xã vẫn sử dụng nước giếng khoan cùng nước máy để phục vụ sinh hoạt. Về thực trạng chất lượng nước, hầu hết các chỉ tiêu chất lượng nước của các mẫu lấy về phân tích đều đảm bảo trong giới hạn cho phép của QCVN 01:2009/BYT và QCVN 02:2009/BYT. Tuy nhiên, chỉ tiêu Pecmanganat không đạt tại các thôn Lở, Đổng Xuyên, An Đà, Hoàng Long và Cự Đà. Ngoài ra, hai mẫu nước giếng khoan tại thôn An Đà và Hoàng Long còn có các chỉ tiêu khác không đạt quy chuẩn. Cụ thể, tại thôn Hoàng Long, nồng độ về độ cứng và mangan lớn hơn quy chuẩn cho phép. Độ đục, màu sắc, mùi vị và nồng độ sắt của mẫu nước tại thông An Đà không đạt quy chuẩn về chất lượng nước sinh hoạt.Safe drinking water is essential for human life. However, residents of Dang Xa commune notified that there was the shortage of water supply as well as unsafe drinking water quality (i.e. abnormal color, smell) occasionally. Therefore,. This study surveyed 30 households and collected water samples from taps at 11 households in 10 villages and Dang Xa urban area of Dang Xa commune, Gia Lam district, Hanoi City. The water samples were analyzed for 13 parameters and the results were compared with the National Technical Regulation on domestic water quality (QCVN02:2009/BYT) and National Technical Regulation on drinking water quality (QCVN01:2009/BYT). The results showed that the clean water supply systemhas not yet met the water demand of residents living in Dang Xa commune recently. Many households in villages of the commune, exept Dang Xa urban area, have to use underground water besides tap water for their daily life. Findings of this study also showed that most of water quality parameters met the national standard for domestic and drinking water use, except permanganate level in collected water samples from Lo, Dong Xuyen, An Da, Hoang Long, Cu Da villages. Two ground water samples at Hoang Long and An Da villages were not safe for domestic use due to the high levels of hardness and manganese (Hoang Long) and iron, suspended solid, color, smell (An Da).

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