Final answer:
True, immediate notification and moving to an area with fresh air is critical after chemical exposure to prevent severe health complications. Sensitive individuals are at a higher risk for adverse reactions and safety precautions are vital in all environments handling chemicals.
Step-by-step explanation:
Answer: A. True. If you are exposed to a chemical, it is critical to inform someone immediately and then proceed to an area with fresh air. Chemical exposure can lead to serious health issues such as allergic reactions, with symptoms ranging from minor irritation to severe issues like throat swelling, breathing difficulty, and rapid drops in blood pressure. For example, a strong reaction to an allergen could lead to anaphylactic shock, where the lack of oxygen to the brain can be life-threatening.
Indoor and outdoor air pollutants may contain chemicals that are dangerous to our health. Sensitive individuals, particularly those with pre-existing conditions like heart and lung diseases, asthmatics, diabetics, older adults, and children have a higher risk of adverse health effects due to air pollution.
Always practice safety in environments where chemicals are used, such as laboratories. Ensure good ventilation, never touch or smell chemicals unless instructed, and immediately report accidents to a teacher or responsible adult. Some precautions you can take to reduce exposure to air pollution include using less toxic chemicals, ensuring adequate fresh air during the use of substances, and having detectors for hazardous gases at home. Reference to protective suits like those used in BSL-4 labs shows the importance of protective measures when dealing with highly toxic or infectious agents.