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Air quality standards are designed to protect the population. They ensure that people have clean air to breathe.
Usually. McDonald's, for instance, is world-renowned for its impeccable standards and unheard of health and cleanliness standards.
Water quality affects human health. One should consume clean water.
Local health inspectors
I believe you are thinking of the Clean Water Act which set standards for water quality in America.
An impaired waterway is a river, lake, stream, pond, bay, or estuary that does not meet the water quality standards of the Clean Water Act and the state.
A tattooer should strive to have a very clean working environment which conforms in every way to local authority Health & Safety standards. The tattooer themselves should be clean and fully understand the hand washing protocols and the cleanliness and safety protocols for working with clients. Ideally they should have served a full apprenticeship in a reputable tattoo studio and been fully trained by their masters in all aspects of hygiene and client care. Quality standards may refer to their ability to draw and tattoo well - the individual client must make their own decision about this from studying the tattooists work - both original drawings and photographs of the tattooer's actual work on clients - in depth.
epa.gov says, "The Clean Air Act (CAA) is the comprehensive federal law that regulates air emissions from stationary and mobile sources. Among other things, this law authorizes EPA to establish National Ambient Air Quality Standards (NAAQS) to protect public health and public welfare and to regulate emissions of hazardous air pollutants." Does that answer your question?
Health standards for commercial ice machines involve cleanliness and hygience. Any gross filth or obvious dirt will not pass muster with inspectors. So clean thoroughly and every few months, at least. . This helps prevent bacteria from making customers and clients sick.
A beach that has been awarded the blue flag means that it meets the organization's standards of environmental management. These standards are for water quality, safety, and public environmental education. BeachToken
Children need a good source of clean water to keep them healthy and hydrated. Poor quality or dirty drinking water can lead to poor health, diseases and the death of a child.
Susan L Mayer has written: 'EPA's implementation of the Clean air act amendments of 1990' -- subject(s): Air, Pollution, Air quality, Standards