Industrial pollution in Zambia has been a significant environmental challenge, contributing to air, water, and soil contamination. A comparative analysis of case studies was conducted, including interviews with industry representatives, regulatory bodies, and academic experts. Data from government reports and published research were also reviewed. Two specific engineering solutions—waste treatment plants and industrial effluent management systems—showed significant improvement in pollution levels by 30% and 25%, respectively, over a five-year period. The study concludes that while both types of solutions were effective, the waste treatment plants provided a more sustainable long-term solution due to lower operational costs and higher compliance rates with environmental regulations. Further research should focus on developing comprehensive waste management strategies for industrial sites in Zambia, incorporating technology transfer and capacity building programmes. The maintenance outcome was modelled as Y₈ₓ=₀+₁X₈ₓ+uᵢ+₈ₓ, with robustness checked using heteroskedasticity-consistent errors.
Musonda et al. (Wed,) studied this question.