Mounting environmental burdens from industrialization and unsustainable consumption patterns have brought contaminants, pollution control & circular economy to the forefront of scientific inquiry and policy reform. Strategies to mitigate airborne toxins, wastewater effluents, and persistent chemicals are now being reimagined through circular principles—prioritizing reuse, valorization, and closed-loop systems. Innovations in adsorption, photocatalysis, and bioremediation are reducing pollutant loads while enabling recovery of valuable materials. Beyond technological interventions, systemic shifts in production and consumption are essential to minimize upstream waste generation. The intersection of Contaminants, Pollution Control & Circular Economy reflects a multidisciplinary agenda uniting environmental science, engineering, and economics to reshape how societies manage waste and resource efficiency in tandem.