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Related Concept Videos

Organic Compounds03:02

Organic Compounds

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All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
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What is Organic Chemistry?02:17

What is Organic Chemistry?

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Organic chemistry is the study of compounds of carbon called organic compounds. Organic compounds either originate from living organisms or are synthesized by chemists. A defining trait of these compounds is the presence of carbon as the principal element, which is bonded to other carbon atoms and other elements such as hydrogen, oxygen, nitrogen, and sulfur. The existence of a wide array of organic molecules is a consequence of carbon atoms’ ability to form up to four strong bonds to...
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Aromatic Compounds: Overview01:25

Aromatic Compounds: Overview

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In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday...
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Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
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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.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
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Chemical Factors Affecting Respiration Centers01:31

Chemical Factors Affecting Respiration Centers

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Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
CO2 has a potent influence on respiration and is strictly regulated....
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Updated: May 1, 2026

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
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Volatile organic compounds and indoor air

M Hodgson1, H Levin, P Wolkoff

  • 1Section of Occupational and Environmental Medicine, University of Connecticut Health Center.

The Journal of Allergy and Clinical Immunology
|August 1, 1994
PubMed
Summary

Volatile organic compounds (VOCs) are a major cause of sick-building syndrome. This review covers VOC measurement, causes, and non-regulatory strategies to prevent building-related symptoms.

Area of Science:

  • Environmental Health
  • Indoor Air Quality
  • Occupational Health

Background:

  • Sick-building syndrome is frequently linked to indoor air pollution.
  • Volatile organic compounds (VOCs) are a primary category of indoor air pollutants contributing to building-related symptoms.
  • Understanding VOCs is crucial for improving indoor environments.

Purpose of the Study:

  • To review the measurement and analytical methods for VOCs.
  • To summarize the etiologic factors contributing to VOC-induced sick-building syndrome.
  • To present novel, non-regulatory intervention strategies for managing VOCs.

Main Methods:

  • Literature review of existing studies on VOCs and sick-building syndrome.
  • Analysis of measurement and analytical techniques for VOC detection.

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  • Synthesis of information on VOC sources and health effects.
  • Identification and evaluation of non-regulatory intervention strategies.

    • Main Results:

    • VOCs are significant contributors to sick-building syndrome.
    • Various methods exist for measuring and analyzing VOCs, each with specific applications.
    • Etiologic factors include building materials, furnishings, and occupant activities.
    • Non-regulatory interventions offer practical solutions for reducing VOC exposure.

    Conclusions:

    • Effective management of VOCs is essential for mitigating sick-building syndrome.
    • A comprehensive approach combining accurate measurement, understanding of causes, and implementation of non-regulatory strategies is recommended.
    • Further research into novel intervention techniques can enhance indoor air quality and occupant health.