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Related Concept Videos

Types of Toxins01:36

Types of Toxins

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Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
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Environmental pollutants like...
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Plasticizers01:31

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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
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Toxicity Testing in Animals01:23

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Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
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Plasticity00:58

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Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
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Drugs, encompassing various chemical compounds from natural sources, lab synthesis, or genetic engineering, elicit different biological responses in living organisms. Some of these responses are desirable or therapeutic, while others are undesirable. The primary goal of administering a drug is to achieve a therapeutic effect, that is, to address a specific disease or health condition. Any concurrent effects outside of this therapeutic outcome are considered undesirable. These undesirable...
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Related Experiment Video

Updated: Mar 2, 2026

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use
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Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use

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Plastic and Human Health: A Micro Issue?

Stephanie L Wright1, Frank J Kelly1

  • 1MRC-PHE Centre for Environment and Health, Analytical and Environmental Sciences, King's College London , London SE1 9NH, United Kingdom.

Environmental Science & Technology
|May 23, 2017
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Summary
This summary is machine-generated.

Microplastics may pose human health risks through inhalation or ingestion, potentially causing particle and chemical toxicity. More research is needed to assess exposure levels and understand the full health impacts of microplastics.

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Last Updated: Mar 2, 2026

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Area of Science:

  • Environmental Science
  • Toxicology
  • Public Health

Background:

  • Microplastics are pervasive environmental pollutants found in food and air.
  • Human exposure to microplastics via diet or inhalation is possible.
  • The health effects of microplastic exposure remain largely unknown.

Purpose of the Study:

  • To review and evaluate the potential human health impacts of microplastics.
  • To identify critical research gaps in the field of microplastics and human health.
  • To synthesize findings from cross-disciplinary scientific literature.

Main Methods:

  • Critical examination of scientific literature up to September 2016.
  • Focus on accumulation, particle toxicity, and chemical/microbial contaminants.
  • Review of complementary fields to infer potential hazards.

Main Results:

  • Microplastics may accumulate in the body upon inhalation or ingestion.
  • Potential hazards include particle toxicity (immune response) and chemical toxicity (leaching of additives/pollutants).
  • Chronic exposure is a concern due to potential accumulation, with effects likely dose-dependent.

Conclusions:

  • Microplastics present potential hazards to human health.
  • Assessing current human exposure levels and body burdens is crucial.
  • Further research is urgently needed to elucidate toxicity mechanisms and health effects.