Question

The principal source of volatile organics (Hydrocarbons) is:

• A. transportation
• B. industrial processes
• C. stationary fuel combustion
• D. volcanoes

Answer 1

The correct option is B industrial processes

Ground-level ozone is formed when volatile organic compounds (VOCs), also known as hydrocarbons, and nitrogen oxides ($N{O}_x$) interact in the presence of sunlight. Sources of VOC and $N{O}_x$ emissions include:

large industry such as chemical manufacturers, and combustion sources such as power plants burning fossil fuels.

small industry such as gasoline-dispensing facilities, auto body paint shops, and print shops