Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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Both human activities and natural activities can change
the physical, chemical, and biological characteristics of
water, and will have specific ramifications for human and
ecosystem health. Water quality is affected by changes in
nutrients, sedimentation, temperature, pH, heavy metals,
non-metallic toxins, persistent organics and pesticides,
and biological factors, among many other factors (Carr and
Neary 2008). Following are brief discussions of these major
contaminants.
Many contaminants combine synergistically to cause worse,
or different, impacts than the cumulative effects of a single
pollutant. Continued inputs of contaminants will ultimately
exceed an ecosystem’s resilience, leading to dramatic,
non-linear changes that may be impossible...
Nội dung trích xuất từ tài liệu:
Groundwater Pollution and Emerging Environmental Challenges of Industrial Effluent Irrigation in Mettupalayam Taluk, Tamil Nadu
