Microplastic pollution is a global environmental problem that is ubiquitous in all environments, including air, water and soils.
Microplastics are readily found in treated wastewater sludge — also known as municipal biosolids — that eventually make their way to our agricultural soils.
Our recent investigation of microplastic levels in Canadian municipal biosolids found that a single gram of biosolids contains hundreds of microplastic particles. This is a much greater concentration of microplastics than is typically found in air, water or soil.
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