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  2. Human impact on river systems - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_river_systems

    River engineering, a branch of civil engineering, deals with the process of planned human intervention to improve and restore rivers for human and environmental needs. With modern technologies, data collection and modelling, navigation can be improved, dredging reduced and new habitats can be created.

  3. River ecosystem - Wikipedia

    en.wikipedia.org/wiki/River_ecosystem

    The effects of pollution often depend on the context and material, but can reduce ecosystem functioning, limit ecosystem services, reduce stream biodiversity, and impact human health. [ 75 ] Pollutant sources of lotic systems are hard to control because they can derive, often in small amounts, over a very wide area and enter the system at many ...

  4. Environmental impact of pharmaceuticals and personal care ...

    en.wikipedia.org/wiki/Environmental_impact_of...

    In 2022, the most comprehensive study of pharmaceutical pollution of the world's rivers found that it threatens "environmental and/or human health in more than a quarter of the studied locations". It investigated 1,052 sampling sites along 258 rivers in 104 countries, representing the river pollution of 470 million people.

  5. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    In 2022, the most comprehensive study of pharmaceutical pollution of the world's rivers found that it threatens "environmental and/or human health in more than a quarter of the studied locations". It investigated 1,052 sampling sites along 258 rivers in 104 countries, representing the river pollution of 470 million people.

  6. Pollution of the Ganges - Wikipedia

    en.wikipedia.org/wiki/Pollution_of_the_Ganges

    Funeral ghats in Varanasi. The ongoing pollution of the Ganges, the largest river in India, poses a significant threat to both human health and the environment. [1] The river supplies water to approximately 40% of India's population across 11 states [2] and serves an estimated 500 million people—more than any other river in the world.

  7. Environmental health - Wikipedia

    en.wikipedia.org/wiki/Environmental_health

    Environmental epidemiology is the study of the effect on human health of physical, biologic, and chemical factors in the external environment, broadly conceived. Also, examining specific populations or communities exposed to different ambient environments, Epidemiology in our environment aims to clarify the relationship that exist between ...

  8. Environmental issues in the Niger Delta - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    People in the affected areas complain about health issues including breathing problems and skin lesions; many have lost basic human rights such as health, access to food, clean water, and an ability to work. [23] [39] On 30 January 2013 a Dutch court ruled that Shell is liable for the pollution in the Niger Delta.

  9. Environmental flow - Wikipedia

    en.wikipedia.org/wiki/Environmental_flow

    Environmental flows do not necessarily require restoring the natural, pristine flow patterns that would occur absent human development, use, and diversion but, instead, are intended to produce a broader set of values and benefits from rivers than from management focused strictly on water supply, energy, recreation, or flood control.