Macro and Nanoplastics in Agriculture: Short Review
摘要
There is a big need to restitute the agricultural soils. Consequences of decisions taken in the past, have given fingerprints in the agricultural sites. Among those fingerprints are the micro and nanoplastics. In the last decades, investigations of the presence and impact of micro/nanoplastics have been carried out in the agricultural soils. Polypropylene and polyethylene are the main plastic polymers prevailing in the agricultural soils, and there is awareness that agricultural soils are sink and source of micro and nanoplastics. The main aim of this short review is to demonstrate which is the impact of nanoplastics in the agricultural sites. For that, using the searching Scopus platform, a selection of papers has been carried out, where the words nanoplastics and agricultural sites were together, and the production of papers increases exponentially in the last years, having a total of 73 papers since 2017 to 2023. And most of the investigations have been performed in Asia. The impact of nanoplastics is recognized at the morphological, oxidative stress and genotoxicity on plants. Soil bacteria might shift their activities if micro/nanoplastics are present in soils. The gut bacteria microbiome diversity of earthworms is modified if soil micro/nanoplastics are present. The type of plastic, concentration and time of exposure play an important role on the impact that micro/nanoplastics might produce on plants, and soil organisms. It is evident that more studies are required since the agricultural soil is polluted with plastic debris. Human health relies on soil health. Therefore, the need of enhancing healthy soils, for healthy food and healthy humans.