Sustainable Development Goals & Environmental Contaminants PDF

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University of Ruhuna

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sustainable development goals environmental contaminants heavy metals water pollution

Summary

This document presents information on the Sustainable Development Goals (SDGs), examines the impacts of heavy metals on plants, harmful algae blooms, cyanotoxins, and various types of organic water contaminants. It also covers methods for detecting these contaminants.

Full Transcript

# Sustainable Development Goals The image shows the 17 Sustainable Development Goals established by the United Nations in 2015. Each goal is represented by a numbered icon, and a short description of each goal is provided below: | Goal | Description | |---|---| | 1 | No Poverty | | 2 | Zero Hun...

# Sustainable Development Goals The image shows the 17 Sustainable Development Goals established by the United Nations in 2015. Each goal is represented by a numbered icon, and a short description of each goal is provided below: | Goal | Description | |---|---| | 1 | No Poverty | | 2 | Zero Hunger | | 3 | Good Health and Well-being | | 4 | Quality Education | | 5 | Gender Equality | | 6 | Clean Water and Sanitation | | 7 | Affordable and Clean Energy | | 8 | Decent Work and Economic Growth | | 9 | Industry, Innovation and Infrastructure | | 10 | Reduced Inequalities | | 11 | Sustainable Cities and Communities | | 12 | Responsible Consumption and Production | | 13 | Climate Action | | 14 | Life Below Water | | 15 | Life On Land | | 16 | Peace, Justice and Strong Institutions | | 17 | Partnership for the Goals | ## Impacts of Heavy Metals on Plants A diagram is presented that shows the impacts of "Heavy Metal Toxicity" on plants. The diagram shows how this toxicity affects: - Reduction in Photosynthesis - Inhibition of Growth - Enzyme Inhibition - Cell Death - ROS production - Decrease in Water Potential - Protein Oxidation - Damage Nucleic Acid ## Harmful Algae Blooms & Cyanotoxins This section highlights the harmful impacts of algal blooms and the toxins produced by cyanobacteria: **Harmful Algae Blooms (HABs)** are found in drinking water treatment plants and recreational waters. The following algal species are mentioned: - Microcystis Sp - Aphanizomenon sp - Cylindrospermopsis sp **Toxins** produced by these harmful algae include: - Microcystine - Cylindrospermopsin # Impacts of Cyanotoxins A diagram of the human body is shown with the following information: **Nervous Tissue, Brain:** - Anatoxin-a - Anatoxin-a(S) - Saxitoxins - (Cyanopeptolins) **Lungs:** - Cylindrospermopsin - Microcystins - Nodularins **Liver:** - Cylindrospermopsin - Microcystins - Nodularins - Limnothrixin **Kidneys:** - Cylindrospermopsin - (Limnothrixin*) **Immune System:** - Cylindrospermopsin - Lipopolysaccharides - Microcystins **Stomach, Esophagus:** - Cylindrospermopsin - (Microcystins) **Small Intestine:** - Cylindrospermopsin - Microcystins **Colon:** - (Cylindrospermopsin, in vitro) - (Microcystin-LR, in vitro) **Gastrointestinal tract, epithelia:** - Anabaenolysins - Limnothrixin* - Puwainaphycins ## Organic Contaminant This section focuses on organic contaminants in water bodies. - Thousands of individual organic compounds enter water bodies due to human activities. - These compounds have significantly different physical, chemical and toxicological properties. - Monitoring every individual compound is not feasible. - Therefore, priority organic pollutants are selected based on their prevalence, toxicity and other properties. ## Common Organic Pollutants The following are common organic pollutants: - Mineral oil - Petroleum products - Phenols - Pesticides - Polychlorinated biphenyls (PCBs) - Surfactants ## Detection - Difficult to monitor organic contaminants in all circumstances. - Requires sophisticated instrumentation and highly trained personnel. - Sophisticated instrumental methods are utilized, including: - Chromatography (GC) - Liquid Chromatography (LC) - Gas Chromatography/Mass Spectrometry (GC/MS) - CE/MS

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