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  2. Environmental hazard - Wikipedia

    en.wikipedia.org/wiki/Environmental_hazard

    [4] [5] Biological hazards, also known as biohazards, are organic substances that pose a threat to the health of living organisms, primarily humans. This can include medical waste, samples of a microorganism, virus, or toxin (from a biological source) that can impact human health. Biological hazards can also include substances harmful to animals.

  3. Ecotoxicity - Wikipedia

    en.wikipedia.org/wiki/Ecotoxicity

    This ultimately affects all living organisms that comprise an ecosystem. Ecotoxicology has been defined as a branch of toxicology that focuses on the study of toxic effects, caused by natural or synthetic pollutants. These pollutants affect animals (including humans), vegetation, and microbes, in an intrinsic way. [1]

  4. List of biosafety level 4 organisms - Wikipedia

    en.wikipedia.org/wiki/List_of_biosafety_level_4...

    Organisms include those harmful to human health, or to animal health. [1] The Plant Protection and Quarantine programs (PPQ) of the Animal and Plant Health Inspection Service (APHIS) are listed in 7 CFR Part 331. The Department of Health and Human Services (HHS) lists are located at 42 CFR Part 73.3 [2] and 42 CFR Part 73.4. [3]

  5. Biological hazard - Wikipedia

    en.wikipedia.org/wiki/Biological_hazard

    A biological hazard, or biohazard, is a biological substance that poses a threat (or is a hazard) to the health of living organisms, primarily humans. This could include a sample of a microorganism, virus or toxin that can adversely affect human health. A biohazard could also be a substance harmful to other living beings. [a]

  6. Environmental health - Wikipedia

    en.wikipedia.org/wiki/Environmental_health

    [32] [33] These pollutants are responsible for the burning of fuel, which can release harmful particles into the air that humans and other living organisms can inhale or ingest. [ 34 ] Air pollution is associated with adverse health effects like respiratory and cardiovascular diseases, cancer , related illnesses, and even death. [ 35 ]

  7. Marine pollution - Wikipedia

    en.wikipedia.org/wiki/Marine_pollution

    A lower ocean pH has a range of potentially harmful effects for marine organisms. Scientists have observed for example reduced calcification, lowered immune responses, and reduced energy for basic functions such as reproduction. [69] Ocean acidification can impact marine ecosystems that provide food and livelihoods for many people.

  8. Toxin - Wikipedia

    en.wikipedia.org/wiki/Toxin

    The Amanita muscaria mushroom, an iconic toxic mushroom.. A toxin is a naturally occurring poison [1] produced by metabolic activities of living cells or organisms. [2] They occur especially as proteins, often conjugated. [3]

  9. List of poisonous animals - Wikipedia

    en.wikipedia.org/wiki/List_of_poisonous_animals

    The hooded pitohui.The neurotoxin homobatrachotoxin on the birds' skin and feathers causes numbness and tingling on contact.. The following is a list of poisonous animals, which are animals that passively deliver toxins (called poison) to their victims upon contact such as through inhalation, absorption through the skin, or after being ingested.

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