ĐÁNH GIÁ HIỆN TRẠNG CHẤT LƯỢNG NƯỚC MẶT TRÊN ĐỊA BÀN QUẬN CẦU GIẤY, THÀNH PHỐ HÀ NỘI=ASSESSMENT OF THE STATE OF SURFACE WATER QUALITY IN CAU GIAY DISTRICT, HANOI CITY

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Tác giả: Hoàng Cường Đặng, Thị Thu Hà A Phạm, Thị Thu Hà B Phạm

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2024

Mô tả vật lý: tr.486 - 494

Bộ sưu tập: Metadata

ID: 480938

Thêm vào giỏ

Nghiên cứu đánh giá chất lượng môi trường nước mặt quận Cầu Giấy thông qua khảo sát mẫu nước của một số sông hồ trong khu vực nghiên cứu. 8 mẫu nước của 5 hồ trong khu vực nghiên cứu đã được lấy và phân tích 8 thông số gồm pH, nhiệt độ, DO, BOD5, COD, NO3-, NH4+, Coliform, kết hợp với số liệu quan trắc tự động chất lượng nước sông Tô Lịch được thu thập vào mùa khô (tháng 3) và mùa mưa (tháng 8) năm 2023 để phân tích các thông số, sử dụng chỉ số chất lượng nước (WQI) và so sánh với QCVN 08-MT:2023/BTNMT để đánh giá chất lượng nước. Kết quả cho thấy: (1) Nguồn nước xả thải vào các khu vực sông hồ quận Cầu Giấy chủ yếu là nước thải sinh hoạt và các khu sản xuất
(2) Mùa khô có 5 thông số bao gồm DO, BOD5, COD, NH4+, Coliform vượt quá giá trị giới hạn cho phép theo QCVN 08-MT:2023/BTNMT, chỉ số WQI dao động từ 33,37-80,62
(3) Mùa mưa có 3 thông số bao gồm DO, BOD5, COD vượt quá giá trị giới hạn cho phép theo QCVN 08-MT:2023/BTNMT, chỉ số WQI dao động từ 84,48-95,69. Từ những kết quả thu thập được, nghiên cứu ngày đưa ra một số giải pháp nhằm cải thiện công tác quản lý môi trường nước mặt tại địa phương đạt được hiệu quả.The study evaluates the surface water quality in Cau Giay district by taking water samples of some rivers and lakes inside study area. 8 water samples from 5 lakes in the research area were taken and analyzed for 8 parameters including pH, Temperature, DO, BOD5, COD, NO3-, NH4+, Coliform, combined with Automatic monitoring data of To Lich river water quality which has been collected in the dry and rainy season (March and August) of 2023 to analyze parameters, Water Quality Index (WQI) calculations and compare with QCVN 08-MT:2023/BTNMT to evaluate water quality. The results indicated that (1) The source of water discharged into rivers and lakes in Cau Giay district is mainly domestic wastewater and production areas
(2) In dry season, there are 5 parameters including DO, BOD5, COD, NH4+, Coliform exceeding the allowable limit value according to QCVN 08-MT:2023/BTNMT, the WQI values ranging from 33.37-80.62
(3) In rainy season, there are 3 parameters including DO, BOD5, COD that exceed the allowable limit value according to QCVN 08-MT:2023/BTNMT, the WQI values ranging from 84.48-95.69. Based on obtained results, this study proposes several solutions to enhance the effectiveness of local surface water management.

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