What kinds of pollution is caused by metal machine shops?

Metal machine shops can generate several types of pollution, primarily including air, water, and soil pollution. Air pollution arises from emissions of volatile organic compounds (VOCs), metal particulates, and fumes from machining processes. Water pollution can result from the discharge of contaminated wastewater containing heavy metals, oils, and coolants. Additionally, soil contamination may occur due to improper disposal of metal shavings and hazardous materials, leading to long-term environmental and health issues.