With rising urbanisation worldwide, the public's lifestyle and many countries' economic growth have undoubtedly improved. However, as we all know, everything has advantages and disadvantages, and urbanisation is no exception. It has resulted in a serious environmental challenge, popularly known as grease trap waste. In most of our cities and towns, what has been observed is that pollutants such as oil, fats, grease, and litter occupy large spaces and end up in natural bodies of water. To tackle these challenges, countries all over the world have come up with a solution known as gross pollutant traps. This article will explore the meaning, structure, types, and functions of gross pollutant traps. What is a Gross Pollutant Trap? Gross pollutant traps are carefully designed structures that are engineered in such a way that they can easily capture largely invisible pollutants from stormwater runoff. Pollutants may include fats, oils, greas...