What is the first step in controlling malodors at a contaminated site?

The first step in controlling malodors at a contaminated site is source removal. This approach is crucial because addressing the origin of the odor directly eliminates the problem at its source rather than just masking it. When malodors are present, they are often a result of organic materials, biological waste, or other contaminants that release foul smells. Removing these sources is the most effective way to ensure that the odor does not persist or return.

While methods such as ventilation, deodorization, and air purification can be beneficial in reducing or masking odors, they will not effectively resolve the issue if the underlying source remains. Deodorization, for instance, may make the air smell better temporarily, but without removing the actual cause of the odor, it will likely return. Therefore, identifying and eliminating the source of the contamination is essential for successful and long-lasting odor control.