Human environmental safety is a multidisciplinary topic concerned with assessing and managing risks to human health arising from environmental exposures to chemical, physical, and biological agents. It encompasses hazard identification, dose–response assessment, exposure assessment, and risk characterization, integrating toxicology, epidemiology, environmental chemistry, and exposure science. The field informs regulatory thresholds, safety factors, and environmental quality standards aimed at preventing adverse outcomes such as carcinogenicity, reproductive toxicity, neurotoxicity, and respiratory disorders. Human environmental safety also includes evaluation of cumulative and aggregate exposures, susceptible populations, and uncertainty analysis to guide risk management, sustainable chemical use, and environmental health policy.
Worldwide, more than 500,000 children under age 5 die each year from gastrointestinal bacterial infections, largely in communities with limited access to safe drinking water, sanitation and hygiene infrastructure. But to ...
Environment
May 6, 2025
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Cities having higher ambient temperatures than rural surroundings (known as the urban heat island effect) could offset some of the negative effects of increased heat-related mortality by reducing the number of deaths associated ...
Environment
Apr 21, 2025
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94
Through its "Moon to Mars" program, NASA plans to send the first crewed missions to Mars by the end of the next decade. To fulfill this bold vision, the agency is investigating advanced technologies through numerous programs. ...
Space Exploration
Apr 21, 2025
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As NASA prepares to return to the moon, studying astronaut health and safety is a top priority. Scientists monitor and analyze every part of the International Space Station crew's daily life—down to the air they breathe. ...
Space Exploration
Apr 18, 2025
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46
In a research letter published in the journal Science, researchers from the UTS Center for Technology in Water and Wastewater write that wildfires can contaminate drinking water distribution systems, posing substantial and ...
Environment
Apr 17, 2025
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About two million people in the United States lack access to running water or indoor plumbing in their homes. Another 30 million people live where drinking water systems violate safety rules.
Environment
Apr 15, 2025
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One of the cleanest places beyond Earth may be making its residents ill. Astronauts aboard the International Space Station (ISS) have had rashes, allergies and the odd infection, and scientists now believe the station's environment ...
Space Exploration
Apr 7, 2025
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People in informal settlements, urban deprived areas, refugee camps, prisons, and war zones can be particularly vulnerable to climate threats and natural hazards. A new study, led by IIASA researchers, explores how policymakers ...
Environment
Mar 17, 2025
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20
NASA's Office of the Chief Health and Medical Officer (OCHMO) assembled a small working group to review hydrogen sulfide (H2S) Spacecraft Maximum Allowable Concentration (SMAC) values. The group met virtually three times ...
Space Exploration
Jan 20, 2025
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56
Nanoparticles (NPs) are often used to reduce environmental pollution by targeting harmful chemicals in soil and water that are released by industrial and agricultural activities. These NPs are engineered to absorb, degrade, ...
Nanomaterials
May 15, 2024
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