What can cause road runoff agents examples
Road runoff agents can be caused by a variety of factors, including:
1. Rainwater: When it rains, water can flow over roads, picking up pollutants and carrying them into storm drains and waterways.
2. Oil and gas spills: Spills of oil, gasoline, or other petroleum-based products on roads can be washed away by rainwater and contribute to road runoff pollution.
3. De-icing salts: Salt and other chemicals used to de-ice roads in the winter can be washed away by rainwater and end up in storm drains and waterways.
4. Tire residue: The wear and tear of tires on roads can create small particles that are washed away by rainwater and contribute to road runoff pollution.
5. Litter: Trash and debris left on roads can be washed away by rainwater and end up in storm drains and waterways.
Overall, road runoff agents can include a variety of pollutants such as heavy metals, pesticides, fertilizers, bacteria, and trash that can harm aquatic ecosystems and human health.