On August 22, 2019, the World Health Organization (WHO) called for more microplastics research and less plastic pollution. They also called “for a reduction in plastic pollution to benefit the environment and reduce human exposure”.
A cited analysis states that “microplastics larger than 150 micrometres are not likely to be absorbed in the human body”. It continues that “Absorption and distribution of very small microplastic particles including in the nano size range may, however, be higher … Further research is needed … [including the development of] standard methods for measuring microplastic particles in water; more studies on the sources and occurrence of microplastics in fresh water; and the efficacy of different treatment processes … By addressing the problem of human exposure to faecally contaminated water, communities can simultaneously address the concern related to microplastics …”