Which of the following industrial processes is a source of volatile organic compound (VOC) air pollutants?
A) Fuel combustion
B) Waste incineration
C) Spraying wood preservative
D) Battery manufacturing
Answer (2)
The option that indicates a source of volatile organic compounds (VOCs) is C) Spraying wood preservative. This process involves the use of solvents that release VOCs into the air. VOCs can lead to air pollution and may harm human health and the environment.
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Volatile Organic Compounds (VOCs) are a group of organic chemicals that have high vapor pressure at room temperature, allowing them to easily evaporate into the air. They are emitted as gases from certain solids or liquids and are common air pollutants that contribute to air pollution, posing health and environmental risks.
In the given options:
(A) Fuel combustion mainly releases carbon dioxide, nitrogen oxides, sulfur dioxide, and particulate matter, but not directly VOCs as the primary pollutants.
(B) Waste incineration primarily releases pollutants like dioxins, furans, and heavy metals depending on the material being incinerated. While VOCs can be emitted, they are not the primary concern.
(C) Spraying wood preservative can release VOCs into the air. Many wood preservatives, paints, and stains contain organic solvents to help with their application. These solvents are VOCs and can evaporate into the air during and after application.
(D) Battery manufacturing is typically not a major source of VOCs. It is more associated with emissions of heavy metals like lead or cadmium, and strong acids or bases used in the manufacturing process.
Therefore, the correct answer is (C) Spraying wood preservative . This process is a common source of VOC air pollutants, as many wood preservatives contain volatile organic solvents that contribute to VOC emissions.
To mitigate VOC emissions while using wood preservatives, one can choose products with low VOC content or ensure proper ventilation during application to reduce exposure and environmental impact.
