Production areas or areas adjacent to highways with traffic density. Transportation and vegetables from areas of production to market, resulting in an increase of heavy metals in vegetables.
The areas adjacent to the highway, or areas with dense traffic, transportation and installation of vegetables from the production area to the market resulted in the addition of heavy metals in vegetables.
The production area is the area adjacent to the highway or traffic that is attached to the carrier density and vegetables from the region of production to market resulting in an increase of heavy metal in vegetables