1. A community health nurse is assessing the impact of air pollution in an urban area. Which pollutant is primarily responsible for exacerbating asthma in children? a) Carbon monoxide b) Lead c) Particulate matter d) Ozone Answer: c) Particulate matter Rationale: Particulate matter, especially fine particles, can penetrate deep into the lungs and cause health problems including exacerbating asthma in children. 2. In a case study of a community near a landfill, which health effect is most likely to be reported? a) Increased incidence of skin cancer b) Respiratory infections c) Gastrointestinal disturbances d) Neurological disorders Answer: b) R