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  2. Drinking water quality in the United States - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality_in...

    People can experience acute health effects from almost any contaminant if they are exposed to extraordinarily high levels (as in the case of a spill). In drinking water, microbes, such as bacteria and viruses, are the contaminants with the greatest chance of reaching levels high enough to cause acute health effects. [34]

  3. Haloacetic acids - Wikipedia

    en.wikipedia.org/wiki/Haloacetic_acids

    Haloacetic acids (HAAs) are a common undesirable by-product of water treatment by chlorination.Exposure to such disinfection by-products in drinking water, at high levels over many years, has been associated with a number of health outcomes by epidemiological studies.

  4. Maximum contaminant level - Wikipedia

    en.wikipedia.org/wiki/Maximum_Contaminant_Level

    Chart of Regulatory Analysis Processes under the Safe Drinking Water Act. To set a maximum contaminant level for a contaminant, EPA first determines how much of the contaminant may be present with no adverse health effects. This level is called the maximum contaminant level goal (MCLG). MCLGs are non-enforceable public health goals.

  5. Drinking water - Wikipedia

    en.wikipedia.org/wiki/Drinking_water

    According to the World Health Organization (WHO), "access to safe drinking-water is essential to health, a basic human right and a component of effective policy for health protection." [17]: 2 In 1990, only 76 percent of the global population had access to drinking water. By 2015 that number had increased to 91 percent. [74]

  6. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    The burden of polluted drinking water disproportionally effects under-represented and vulnerable populations. [11] Communities that lack these clean drinking-water services are at risk of contracting water-borne and pollution-related illnesses like Cholera, diarrhea, dysentery, hepatitis A, typhoid, and polio. [12]

  7. Drinking water quality standards - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality...

    Drinking water quality standards describes the quality parameters set for drinking water. Water may contain many harmful constituents, yet there are no universally recognized and accepted international standards for drinking water. Even where standards do exist, the permitted concentration of individual constituents may vary by as much as ten ...

  8. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    pH can be measured using indicators, which change color depending on the pH of the solution they are in. By comparing the color of a test solution to a standard color chart, the pH can be estimated to the nearest whole number. For more precise measurements, the color can be measured using a colorimeter or spectrophotometer.

  9. Sanitation - Wikipedia

    en.wikipedia.org/wiki/Sanitation

    The target is about "clean water and sanitation for all" by 2030. [53] It is estimated that 660 million people still lacked access to safe drinking water as of 2015. [37] [38] Since the COVID-19 pandemic in 2020, the fight for clean water and sanitation is more important than ever. Handwashing is one of the most common prevention methods for ...