**4. Pesticide use in the world**

The agrochemical enterprise has drastically improved over the last few years because of tremendous agricultural exercises [46]. Pesticides are the chemical materials that generally steady the rural commodities through controlling the extensive array of pests and insects [47]. Numerous styles of insecticides generate pollutants of air, soil, groundwater, and floor water, and unfavorable to human properly being as they are discharged into the ecosystem due to runoff from farming and civic areas [48, 49]. Among these pollutants, pesticides are of great concern because of

*Potential of Aquatic Plants for Pesticide Removal in Wastewater: A Case Study… DOI: http://dx.doi.org/10.5772/intechopen.107064*

**Figure 3.**

*Different types of pesticides based on chemical composition [60].*

their broad use and persistence in the environment for up to decades [50], bringing negative impacts on ecosystems and human health [51, 52]. In the last century, organochlorine pesticides (OCPs), have been extensively used worldwide (**Figure 3**) [53], raising environmental concerns due to their toxicity, persistence, bioavailability, endocrine-disrupting properties and long-range transportation [54, 55]. Despite their worldwide ban between the 1970s et 1990s, concentrations of these pollutants remain in the environment, being a threat to the ecosystem and human health [56].

Pesticides are the second one largest potable water pollutant and posture the best danger [57]. A pesticide must be dangerous to the supposed pests however now no longer to non-supposed species like people and many different creatures. Nevertheless, because of the lack of precision, it's far toxic to each supposed and non-supposed species. The major reason for humans, fishes, birds, and bee's infection was the non - specific pesticide toxicity [58]. Phenol and chlorophenols (CPs) are representative examples of a wider group of phenolic pollutants. Their presence in the environment is due to intensive historical use, drinking water chlorination, biodegradation of organochlorinated chemicals, and their importance in the chemical industry [59].
