The Effects of Sewage Pollution on Human Health

When raw sewage enters your home or surrounding environment, it is more than just an unpleasant mess—it can pose serious health risks. Sewage contains harmful bacteria, viruses, parasites, chemicals, and other contaminants that can affect both people and the environment.

How Are People Exposed to Sewage?

There are three primary ways sewage contaminants can enter the human body:

Ingestion (Oral Exposure)

People may become sick by accidentally swallowing contaminated water or consuming food that has come into contact with sewage-contaminated water, including fish and shellfish harvested from polluted waters.

Skin Contact (Dermal Exposure)

Raw sewage can enter the body through cuts, scrapes, open wounds, or skin conditions such as eczema or rashes. Even healthy skin can become irritated after prolonged contact with contaminated water.

Inhalation (Aerosol Exposure)

Tiny droplets released into the air during a sewer backup, flood cleanup, pressure washing, or splashing water can be inhaled. These droplets may contain bacteria, viruses, mold spores, and other harmful microorganisms.

Why Is Raw Sewage Dangerous?

Domestic sewage comes from everyday household activities, including:

• Toilets
• Kitchen sinks
• Showers and bathtubs
• Bathroom sinks
• Washing machines
• Dishwashers
• Garbage disposals

Although household wastewater may seem harmless, it contains a mixture of organic waste, chemicals, detergents, grease, food particles, and disease-causing microorganisms.

Common contaminants found in sewage include:

• Bacteria such as E. coli and Salmonella
• Viruses
• Parasites
• Mold and fungi
• Household chemicals and cleaning products
• Phosphates and detergents
• Human waste

Health Effects of Sewage Exposure

Exposure to raw sewage can cause a wide range of illnesses and medical conditions, including:

• Gastrointestinal illnesses
• Nausea and vomiting
• Diarrhea
• Skin rashes and infections
• Eye, nose, and throat irritation
• Respiratory problems
• Ear infections
• Fever
• Hepatitis
• Serious bacterial infections

Children, older adults, pregnant women, and individuals with weakened immune systems are especially vulnerable to sewage-related illnesses.

Environmental Impact

When sewage enters rivers, lakes, streams, or groundwater, microorganisms begin breaking down the organic waste. This process consumes oxygen in the water, making it difficult for fish and other aquatic life to survive.

In addition, chemicals from soaps, detergents, and household cleaning products contribute to water pollution by disrupting aquatic ecosystems and contaminating drinking water supplies.

How to Reduce the Risk of Sewer Backups

While many sewer backups are caused by municipal sewer system failures, homeowners can help reduce certain risks by following these practices:

• Never pour grease, fats, or cooking oil down the drain. Dispose of them in the trash after they cool.
• Avoid flushing wipes, paper towels, feminine hygiene products, or other non-flushable items.
• Plant trees and large shrubs away from sewer lines, as tree roots can crack and clog underground pipes.
• Never connect sump pumps, French drains, or other stormwater systems to the sanitary sewer. These illegal connections can overload municipal sewer systems and increase the risk of backups.
• Have your private sewer line inspected if you notice slow drains, recurring clogs, or sewage odors.

Read here to learn more about how to prevent future sewer backups in your home: https://sewerlawyers.com/precautionary-measures/