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Health Topics - Health Hazards

Find out more information about Environmental health hazards such as Blue-Green Algae and Harmful Algal Blooms (HABs), Chloropicrin, idling, lead, nitrate, second-hand smoke, and wind turbines.

  • Blue-Green Algae and Harmful Algal Blooms (HABs)

    What are blue-green algae? Health Effects Exposure to blue-green algae toxins can cause the following health effects in people: Skin Contact (e.g. swimming or bathing in contaminated water) Skin rashes Itchy skin Irritated ears Irritated eyes Swallowed (e.g. eating contaminated fish or drinking contaminated water) Headaches Nausea Fever Sore throat Dizziness Stomach cramps Abdominal pain […]

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  • Chloropicrin Info

    In the wake of a recent exposure of a number of Norfolk residents to the soil fumigant chloropicrin, the Haldimand-Norfolk Health Unit is advising anyone in the affected area to take certain precautions to protect their health. There are a number of things those who were evacuated from their homes, or those who may have […]

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  • Environmental Health

    Environmental health focuses on the interaction between the environment and the health of the public. Mandated programs include: Health hazard investigation Food safety Water sampling Emergency response Smoke-Free Ontario Tobacco control Sun safety education for the prevention of skin cancer Swimming pool inspections Migrant farm workers’ housing Rabies prevention Lyme Disease West Nile virus Click […]

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  • Idling

    PDF/Printer Friendly Version Unnecessary or excessive idling of vehicles is expensive, harmful to our health, causes environmental damage, and gets you nowhere! Canadian motorists idle their vehicles an average of six to eight minutes a day. If every driver of a light duty vehicle reduced their idling by three minutes a day, collectively over the […]

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  • Lead

    Lead is a heavy metal that occurs naturally in the environment. Lead was used extensively in the plumbing industry and has appeared in a wide variety of consumer products including paint, gasoline, lead crystal, solder in food cans and glazes used for pottery and dinnerware. Since the early 1970s the use of lead in consumer […]

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  • Nitrate

    PDF/Printer Friendly Version What is Nitrate? Nitrate is a naturally occurring substance that is an essential ingredient for the growth of plants. Human activities can contribute to higher levels of nitrate in ground and surface waters. The major source of excess nitrate is fertilizer for agricultural, lawn and garden uses. Other sources include animal manure from feedlots, dairies and poultry farms; […]

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  • What is Hydrogen Sulphide (H2S)?

    Health Hazards Find more information about environmental health hazards such as hydrogen sulphide, blue-green algae and harmful algal blooms (HABs), chloropicrin, idling, lead, nitrate, second-hand smoke, and wind turbines.

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  • Wind Turbines

    Health Canada has released the findings of a study regarding the health effects of exposure to wind turbine noise and the accompanying low frequency noise and infrasound produced. Please visit the following link to read a summary of the results:

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