Sources of pathogens in water are primarily associated with which category?

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Study for the Water Resources and Pollution Test. Prepare with comprehensive multiple choice questions, hints, and explanations. Ensure exam success by understanding key concepts and strategies!

Multiple Choice

Sources of pathogens in water are primarily associated with which category?

Explanation:
Pathogens in water mainly come from fecal contamination—waste from humans and animals entering water bodies. Sewage, septic effluent, livestock manure, and animal waste wash into streams and rivers, bringing disease-causing organisms like bacteria, viruses, and protozoa. Sediments can trap and transport these pathogens, but they are not the primary source themselves. Toxic chemicals are chemical contaminants, not pathogens, and “major water pollutants” is a broad label that doesn’t pinpoint the biological origin. So the main source category is human and animal wastes.

Pathogens in water mainly come from fecal contamination—waste from humans and animals entering water bodies. Sewage, septic effluent, livestock manure, and animal waste wash into streams and rivers, bringing disease-causing organisms like bacteria, viruses, and protozoa. Sediments can trap and transport these pathogens, but they are not the primary source themselves. Toxic chemicals are chemical contaminants, not pathogens, and “major water pollutants” is a broad label that doesn’t pinpoint the biological origin. So the main source category is human and animal wastes.

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