Thực trạng chất lượng nước mặt và một số yếu tố liên quan tại thành phố Vinh và vùng lân cận, tỉnh Nghệ An năm 2022=Current status of surface water quality and some related factors in Vinh city and surrounding areas, Nghe An province in 2022

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Tác giả: Trí Hiệp Ngô, Văn Tuấn Nguyễn, Ngọc Bình Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Y học cộng đồng, 2023

Mô tả vật lý: tr.81-90

Bộ sưu tập: Metadata

ID: 477627

Thêm vào giỏ

Nghiên cứu được thực hiện nhằm đánh giá chất lượng nước mặt tại thành phố Vinh và vùng lân cận cùng một số yếu tố liên quan đến chất lượng nước mặt. Phương pháp nghiên cứu: Thiết kế nghiên cứu mô tả cắt ngang có phân tích khảo sát 33 thông số nước mặt của 15 mẫu nước lấy tại 15 vị trí sông, hồ thành phố Vinh và huyện Hưng Nguyên, so sánh với QCVN 08-MT:2015/BTNMT. Kết quả nghiên cứu: Chất lượng nước mặt thành phố Vinh có dấu hiệu ô nhiễm. Hầu hết các sông, hồ đều có biểu hiện ô nhiễm chất hữu cơ (BOD5, COD, N-NH4 +, TSS), các sông có hiện tượng xâm nhập mặn với nồng độ Clorua cao, dấu hiệu ô nhiễm kim loại (Mn, Fe), E.coli. Kết quả tính toán chỉ số WQI (Water Quality Index, theo hướng dẫn của Bộ Tài nguyên và Môi trường, 2019) dao động từ 8 – 95 phản ánh về tình trạng chất lượng nước mặt tại địa bàn nghiên cứu. Kết luận: Nghiên cứu đã xác định một số nguyên nhân gây ô nhiễm nước mặt thành phố Vinh làm cơ sở để đưa ra các giải pháp hạn chế nguồn ô nhiễm.The study was conducted to evaluate surface water quality in Vinh city and surrounding areas along with a number of factors related to surface water quality. Research methods: Cross-sectional descriptive research designed to survey and analysis of 33 surface water parameters of 15 water samples taken at 15 river and lake locations in Vinh city and Hung Nguyen district, compared with QCVN 08-MT :2015/BTNMT. Results: Vinh city's surface water quality shows signs of pollution. Most rivers and lakes show signs of organic pollution (BOD5, COD, N-NH4+, TSS), rivers have saline intrusion with high chloride concentrations, signs of metal pollution (Mn, Fe), E.coli. The results of calculating the WQI index (Water Quality Index, according to the instructions of the Ministry of Natural Resources and Environment, 2019) range from 8 to 95, reflecting the state of surface water quality in the study area. Conclusion: The study has identified a number of causes of surface water pollution in Vinh city as a basis for providing solutions to limit pollution sources.

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