Which of the following are environmental stressors contributing to poor global health?

• A. Lead poisoning and air pollution; Effects of air pollution on products and structures; Noise and litter; Global warming; Natural disasters, terrorism, and war.
• B. Only natural disasters and wars.
• C. Water pollution and climate change only.
• D. Noise only.

Answer: (A)

Environmental stressors are factors in the surroundings that harm health through chemicals, air and water quality, noise, waste, climate effects, and disruptions from disasters or conflict. The best choice captures this breadth by listing lead poisoning (a chemical hazard), air pollution (a major health driver), noise and litter ( everyday environmental nuisances), global warming (climate change), and the impacts of natural disasters, terrorism, and war (acute and protracted environmental and societal stressors). Each pathway leads to different health risks—poisoning and developmental concerns from lead, respiratory and cardiovascular disease from poor air quality, sleep disturbance and stress from noise, sanitation and disease risks from litter, heat and extreme-weather-related health issues from climate change, and injuries, displacement, and strained health systems from disasters and conflict. The other options are too narrow, either focusing only on disasters and wars, or only on water pollution and climate change, or only on noise.