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  2. Metabolic waste - Wikipedia

    en.wikipedia.org/wiki/Metabolic_waste

    These compounds form during the catabolism of carbohydrates and lipids in condensation reactions, and in some other metabolic reactions of the amino acids. Oxygen is produced by plants and some bacteria in photosynthesis, while CO 2 is a waste product of all animals and plants. Nitrogen gases are produced by denitrifying bacteria and as a waste ...

  3. Trichloroethylene - Wikipedia

    en.wikipedia.org/wiki/Trichloroethylene

    Trichloroethylene (TCE) is a halocarbon with the formula C 2 HCl 3, commonly used as an industrial metal degreasing solvent. It is a clear, colourless, non-flammable, volatile liquid with a chloroform-like pleasant mild smell [3] and sweet taste. [9] Its IUPAC name is trichloroethene. Trichloroethylene has been sold under a variety of trade names.

  4. Cellular waste product - Wikipedia

    en.wikipedia.org/wiki/Cellular_waste_product

    Cellular respiration takes place in the cristae of the mitochondria within cells. Depending on the pathways followed, the products are dealt with in different ways. CO 2 is excreted from the cell via diffusion into the blood stream, where it is transported in three ways: Up to 7% is dissolved in its molecular form in blood plasma.

  5. The EPA has banned 2 cancer-causing chemicals used in dry ...

    www.aol.com/lifestyle/epa-banned-2-cancer...

    The chemicals — trichloroethylene and perchloroethylene (PCE or perc) — can cause multiple kinds of cancers and damage to the kidney, liver and immune and nervous systems at high exposure ...

  6. Hazardous waste - Wikipedia

    en.wikipedia.org/wiki/Hazardous_waste

    Historically, some hazardous wastes were disposed of in regular landfills. Hazardous wastes must often be stabilized and solidified in order to enter a landfill and must undergo different treatments in order to stabilize and dispose of them. Most flammable materials can be recycled into industrial fuel.

  7. Excretion - Wikipedia

    en.wikipedia.org/wiki/Excretion

    Oxygen is a byproduct generated during photosynthesis, and exits through stomata, root cell walls, and other routes. Plants can get rid of excess water by transpiration and guttation. It has been shown that the leaf acts as an 'excretophore' and, in addition to being a primary organ of photosynthesis, is also used as a method of excreting toxic ...

  8. Cryopreservation - Wikipedia

    en.wikipedia.org/wiki/Cryopreservation

    Generally, cryopreservation is easier for thin samples and suspended cells, because these can be cooled more quickly and so require lesser doses of toxic cryoprotectants. Therefore, cryopreservation of human livers and hearts for storage and transplant is still impractical.

  9. Brain health and pollution - Wikipedia

    en.wikipedia.org/wiki/Brain_health_and_pollution

    Particulates are the most harmful form (other than ultra-fines) of air pollution [22] as they can penetrate deep into the lungs and brain from blood streams, causing health problems such as heart disease, lung disease, and premature death. [23] There is no safe level of particulates. [24] Ultrafine particles are both manufactured and naturally ...