Environmental Health and Safety

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Evolution did not equip you to live in a world of constant noise. Your nervous system was engineered by natural selection for an environment of almost total quiet. Nature is mostly filled with soft, quiet sounds: leaves rustling, water trickling, insects buzzing. An animal call here and there. This is what your amygdala (the fear center in the brain) rates as a normal sound level. Sharp sounds, loud bangs, people yelling and crying, revving engines and the like all trigger a fear/danger response.

Unwanted and potentially unhealthy noise permeates everything we do -- our homes, offices, leisure time, even our sleep, says the National Academy of Engineering. The worst noisemakers are machines -- all forms of transportation, including planes, trains, cars and trucks; lawnmowers, snow blowers, leaf blowers and other loud household products; and manufacturing machines.

According to studies, the noisiest cities are the largest ones (those with a population in excess of one million). The quietest among them is Phoenix, AZ at only 47.2 dBA. Chicago, IL is on the other side of the scale – the average noise level here is 54.8 dBA. The Anchorage municipality is technically the quietest city with a population greater than 250,000; the average noise level here is 34.5 dB, which is more in line with the numbers encountered in small villages.

New workplace safety and health issues continue to emerge around the relatively new fields of nanotechnology, advanced materials, and additive manufacturing, which makes updated on information a challenge for safety professionals and others. Because many people turn to Wikipedia for information, scientists with the National Institute for Occupational Safety and Health (NIOSH) gathered with “Wikipedians” from across the Midwest to expand and improve Wikipedia articles about nanotechnology OSH.

Additional scientific research and a broad sharing of existing data are needed by safety and health practitioners across the country to better protect workers in every industry, according to the American Society of Safety Engineers (ASSE). That’s why ASSE brought together dozens of industry leaders and safety experts recently for a research workshop aimed at creating a new wave of progress.

Before the end of World War II, there was little interest in fitting workplace conditions and job demands to the capabilities of the working population—a scientific practice known as ergonomics. By the 1970s, NIOSH researchers were pioneering the study of musculoskeletal health as professional ergonomists, examining physical and social components of work environments (such as conveyer belt height and lunch break routines, respectively) to mitigate musculoskeletal injury risks.

With wildfires posing a current and – no doubt – future threat to California’s residents and its environment, the American Industrial Hygiene Association (AIHA) is urging California Governor Jerry Brown to turn to the experts – industrial hygienists – when it comes to protecting the health and safety of residents and recovery workers. “AIHA and its members are ready now, and we will remain ready to assist you in recovery efforts throughout the days to come,” wrote AIHA President Deborah Imel Nelson PhD, CIH and California Industrial Hygiene Council President Pamela Murcell, CIH in a letter to Brown.

Climate change is already harming human health in ways that are “far worse than previously understood,” according to a new report in The Lancet, a prestigious British medical journal. "Climate change is happening, and it's a health issue today for millions worldwide,” said Anthony Costello, co-chair of The Lancet Countdown, the commission that produced the report.

When it comes to health, a large gap often exists between what we know (for example, we know that eating too much sugar is bad for our health) and what we still do. Hearing loss prevention is no exception. We have been aware of the harmful effects of overexposure to noise for over a century.