Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Ecotoxicity
Ecotoxicity, the subject of study in the field of ecotoxicology (a portmanteau of ecology and toxicology), refers to the biological, chemical or physical stressors that affect ecosystems. Such stressors can occur in the natural environment at densities, concentrations, or levels high enough to disrupt natural biochemical and physiological behavior and interactions. This ultimately affects all living organisms that comprise an ecosystem.
Ecotoxicology has been defined as a branch of toxicology that focuses on the study of toxic effects, caused by natural or synthetic pollutants. These pollutants affect animals (including humans), vegetation, and microbes, in an intrinsic way.
In Barrie Peake's paper, Impact of Pharmaceuticals on the Environment, ecotoxicity is defined based on the level of exposure to hazardous substances. Peake identifies two categories: acute and chronic ecotoxicity (Peake, 2016).
Acute ecotoxicity refers to harmful effects that occur from exposure to a hazardous substance for up to 15 days. These effects are caused by the interaction of the chemical with an organism's cell membranes, often leading to cell or tissue damage or death (Peake, 2016).
Chronic ecotoxicity, on the other hand, refers to harmful effects from long-term exposure, ranging from 15 days to several years. It is typically linked to specific drug-receptor interactions that trigger a pharmacological response in an aquatic or terrestrial organism. While chronic ecotoxicity is less likely to be lethal, it reduces cellular biochemical functions, which can lead to changes in the organism's psychological or behavioral responses to environmental stimuli (Peake, 2016).[citation needed]
In Canada, there is no law requiring manufacturers to state the health and environmental hazards associated with their cleaning products. Many people buy such products to support a clean and healthy home, often unaware of the product's ability to harm both their own health and the surrounding environment. "Canadians spend more than $275 million on household cleaning products in a year." Chemicals from these cleaners enter our bodies through air passageways and absorption through the skin. When these cleaning products are washed down the drain, they can negatively affect aquatic ecosystems. There are also no regulations in place stating that the ingredients must be listed on labels of cleaning products. This often leads users to be unaware of the chemicals they expose themselves and their surrounding environments to.[citation needed]
Fragrance chemicals are found in most cleaning products, perfumes, and personal care products. More than 3000 chemicals are used in these fragrance mixtures. The synthetic musks used in detergents accumulate in the environment and are harmful to aquatic organisms. Certain musks are possible endocrine disruptors that interfere with hormone functioning. Phthalates are a common ingredient in these fragrance mixtures found in laundry detergents and fabric softeners. These phthalates (suspected endocrine disrupters) affect reproduction rates, including reduced sperm count in males. Certain glass cleaners and floor polishes contain dibutyl phthalate (DBP). The European Union classifies DBP as very toxic to aquatic organisms. This poses a huge danger as these cleaners, especially the floor polishes, are often rinsed down the drain and into aquatic environments.[citation needed]
Phosphates are found in many dishwasher detergents, laundry detergents, and bathroom cleaners. They act as a fertilizer in water and in high concentrations can promote algae blooms and increase weed growth. When water containing phosphates are washed into water areas, they carry with them fertilizers, nutrients, and wastes. Phytoplankton and algae flourish at the surface due to increased phosphates. Dead phytoplankton and other organisms sink to the bottom giving rise to large numbers of decomposers due to increased food supply (dead organisms, phytoplankton). Due to the increased number of decomposers that use more oxygen, fish and shrimp at the lower layers of the ocean become oxygen-starved, resulting in the creation of hypoxic zones.[citation needed]
Hub AI
Ecotoxicity AI simulator
(@Ecotoxicity_simulator)
Ecotoxicity
Ecotoxicity, the subject of study in the field of ecotoxicology (a portmanteau of ecology and toxicology), refers to the biological, chemical or physical stressors that affect ecosystems. Such stressors can occur in the natural environment at densities, concentrations, or levels high enough to disrupt natural biochemical and physiological behavior and interactions. This ultimately affects all living organisms that comprise an ecosystem.
Ecotoxicology has been defined as a branch of toxicology that focuses on the study of toxic effects, caused by natural or synthetic pollutants. These pollutants affect animals (including humans), vegetation, and microbes, in an intrinsic way.
In Barrie Peake's paper, Impact of Pharmaceuticals on the Environment, ecotoxicity is defined based on the level of exposure to hazardous substances. Peake identifies two categories: acute and chronic ecotoxicity (Peake, 2016).
Acute ecotoxicity refers to harmful effects that occur from exposure to a hazardous substance for up to 15 days. These effects are caused by the interaction of the chemical with an organism's cell membranes, often leading to cell or tissue damage or death (Peake, 2016).
Chronic ecotoxicity, on the other hand, refers to harmful effects from long-term exposure, ranging from 15 days to several years. It is typically linked to specific drug-receptor interactions that trigger a pharmacological response in an aquatic or terrestrial organism. While chronic ecotoxicity is less likely to be lethal, it reduces cellular biochemical functions, which can lead to changes in the organism's psychological or behavioral responses to environmental stimuli (Peake, 2016).[citation needed]
In Canada, there is no law requiring manufacturers to state the health and environmental hazards associated with their cleaning products. Many people buy such products to support a clean and healthy home, often unaware of the product's ability to harm both their own health and the surrounding environment. "Canadians spend more than $275 million on household cleaning products in a year." Chemicals from these cleaners enter our bodies through air passageways and absorption through the skin. When these cleaning products are washed down the drain, they can negatively affect aquatic ecosystems. There are also no regulations in place stating that the ingredients must be listed on labels of cleaning products. This often leads users to be unaware of the chemicals they expose themselves and their surrounding environments to.[citation needed]
Fragrance chemicals are found in most cleaning products, perfumes, and personal care products. More than 3000 chemicals are used in these fragrance mixtures. The synthetic musks used in detergents accumulate in the environment and are harmful to aquatic organisms. Certain musks are possible endocrine disruptors that interfere with hormone functioning. Phthalates are a common ingredient in these fragrance mixtures found in laundry detergents and fabric softeners. These phthalates (suspected endocrine disrupters) affect reproduction rates, including reduced sperm count in males. Certain glass cleaners and floor polishes contain dibutyl phthalate (DBP). The European Union classifies DBP as very toxic to aquatic organisms. This poses a huge danger as these cleaners, especially the floor polishes, are often rinsed down the drain and into aquatic environments.[citation needed]
Phosphates are found in many dishwasher detergents, laundry detergents, and bathroom cleaners. They act as a fertilizer in water and in high concentrations can promote algae blooms and increase weed growth. When water containing phosphates are washed into water areas, they carry with them fertilizers, nutrients, and wastes. Phytoplankton and algae flourish at the surface due to increased phosphates. Dead phytoplankton and other organisms sink to the bottom giving rise to large numbers of decomposers due to increased food supply (dead organisms, phytoplankton). Due to the increased number of decomposers that use more oxygen, fish and shrimp at the lower layers of the ocean become oxygen-starved, resulting in the creation of hypoxic zones.[citation needed]