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Occurrence, fate, and toxicity of emerging contaminants in a diverse ecosystem

  • Rameshwar Yadav Hiranmai ORCID logo and Murugesan Kamaraj ORCID logo
Published/Copyright: October 13, 2021
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Abstract

Activities that were developed for better/modern living conditions of humans are the primary source of contaminants to the natural ecosystem. Some of the compounds involved in urbanization and industrialization are termed emerging contaminants (ECs) or contaminants of emerging concern. ECs are either chemical or derived from natural sources which environmental concerns and public health have been raised in recent years. ECs enter wastewater treatment systems and migrate from here to different ecosystems as direct or by-products. They are persistent and also stay for a long duration due to their less biodegradation and photodegradation nature. Also, ECs accumulated in living cells and transformed through trophic levels. Technological developments and their application/utility in daily life led to the production of various components that are being added to the natural ecosystem. The treated/untreated wastewater enters into fresh/marine water bodies and gets accumulated into fauna, flora, and sediments. These pollutants/contaminants that are getting added on an everyday basis bring about changes in the existing ecosystem balances. ECs have been found in almost every country’s natural environment, and as a result, they became a global issue. The present review discusses the route and transport of selected ECs into the terrestrial ecosystem through water and other means and how they influence the natural process in an ecosystem. The ECs such as personal care products, pharmaceuticals, polyaromatic hydrocarbons, endocrine disruptors, nanoparticles, and microplastics are highlighted in this review.


Corresponding author: Rameshwar Yadav Hiranmai, School of Environment and Sustainable Development, Central University of Gujarat, Sector-30, Gandhinagar 382030, Gujarat, India, E-mail:

Acknowledgments

The authors wish to acknowledge all who had been instrumental in the creation of this review article.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: No fund was received from any funding agency or organization toward making this manuscript.

  3. Conflict of interest statement: The authors declare they have no conflicts of interest.

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Published Online: 2021-10-13

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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