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Sự Xuất Hiện Của Glyphosate Trong Nước Bề Mặt Ở Nam Ontario
Tóm tắt
Glyphosate trong nước bề mặt của Nam Ontario (Canada) đã được nghiên cứu trong thời gian 2 năm. Một tỷ lệ nhỏ các mẫu cho thấy nồng độ glyphosate cao hơn giới hạn phân tích định lượng (17 μg a.e./L), và nồng độ glyphosate tối đa được đo được là 40.8 μg/L. Không có mẫu nào trong khoảng 500 mẫu phân tích vượt qua Hướng Dẫn Chất Lượng Nước Canada là 65 μg a.e./L, được coi là bảo vệ sự sống thủy sinh. Nồng độ glyphosate điển hình trong môi trường sống của động vật lưỡng cư thấp hơn nhiều so với các ngưỡng độc tính cho các sinh vật thủy sinh, và do đó được đánh giá là không có khả năng gây ra rủi ro đáng kể cho cả ấu trùng lưỡng cư nhạy cảm hay các sinh vật thủy sinh khác.
Từ khóa
#Glyphosate #nước bề mặt #Nam Ontario #chất lượng nước #sinh vật thủy sinh #động vật lưỡng cưTài liệu tham khảo
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