Man-made environmental anomaly refers to a phenomenon in which one or more environmental elements of the natural environment have changed significantly due to human behavior within a certain geographic area, which disrupts the relative balance of the ecosystem.
According to the above definition, the large number of orders at an industrial park along a certain river and the resulting increase in the amount of discharged wastewater, leading to the deaths of fish and shrimps in the lower reaches of the river and the deaths of crops along the coast, is an example of a human-made environmental abnormality.