Mr. Speaker, by moving this motion, we are trying to ban the use of microbeads in consumer products. Since the 1990s, these products have become veritable vectors of these microbeads, which end up poisoning our ecosystems because they are ingested by various marine organisms. Slowly but surely we are indirectly poisoning ourselves with our consumer products.
These microbeads take up the most toxic substances, which can ultimately poison us. It is not just consumer products that introduce microplastics into the environment. For example, when we wash our clothes, microplastics can be shed by the nylon and the fabric. However, compared to other ways that microplastics enter the environment, especially by the degradation of plastic products, consumer products are the easiest to target in order to eliminate microbeads. Since it is so easy to do it, we must do it.
Last October, Francine Plourde did an exposé on microbeads on the Radio-Canada program Les années lumière. It exposed the insidious plastics chain that has led us to move this motion calling on the government to take immediate measures to add microbeads to the list of toxic substances managed under the Canadian Environmental Protection Act.
The study carried out by McGill University researchers, together with the Government of Quebec, examined the significant presence of polluting microbeads in the sediment of our St. Lawrence River. She told us that, in some spots, the researchers found more than 1,000 microbeads per litre of sediment, which is much higher than what is being found in the world's most contaminated marine sediments. An analysis of the structures of the microbeads found points to the same microbeads that are in consumer products.
The term microplastics generally refers to plastic particles smaller than five millimetres in diameter. Microbeads found in cosmetics are always less than one millimetre in diameter.
I will try to explain the cycle of microbeads in a few points. First, thousands of cosmetic products use plastic microbeads, generally in exfoliants and cleansing products.
In 2009, Fendall and Sewell, from the University of Auckland, found that microbeads pass into waste water and sewer systems directly because they are too small to be retained by the filters used at sewage treatment plants. That is how they end up in marine environments and eventually in the food chain.
Although the full extent and consequences are hard to quantify, the accumulation of plastic in the marine environment is now recognized as a serious, global environmental issue. Some specialists have even said that it is like putting a plastic bag over the head of our marine environment. I do not have to explain that having a plastic bag over one's head does not usually end well. The impact that this kind of pollution is having on marine biodiversity and human health is causing grave concern among scientists.
I would like to share some scientific findings with the House. Marine species are unable to distinguish between food and microplastics, and therefore often end up indiscriminately feeding on microplastics. In an overview published for the Convention on Biological Diversity, it was shown that over 663 different species were adversely affected by marine debris, with approximately 11% of reported cases specifically related to the ingestion of microplastics. Some species of fish excrete plastic easily, but others do not and therefore accumulate plastic internally.
For instance, one study found that around 35% of 670 fish examined, from six different species, had plastic in their stomachs. The highest number of plastic fragments found in one fish alone was 83.
In terms of human health, it has been proven that microplastics attract and absorb persistent organic pollutants.
Pollutants such as PCBs and DDT are already present in the environment. Relatively high concentrations of these persistent organic pollutants, or POPs, have been detected on the surface of microplastics.
International Pellet Watch, coordinated by Professor Takada of the University of Tokyo, is currently researching this. Professor Takada's scientific work shows that some persistent organic pollutants have been found in the tissues of seabirds after the birds ingested microplastics carrying these pollutants.
In theory, POPs ingested by animals should be able to bind to the fragments of plastic that are swallowed before being naturally expelled. However, these pieces of plastic have been found in the intestines and tissues of fish and other seafood regularly consumed by humans.
Scientists are concerned that these POPs will eventually accumulate in the food chain as they are transmitted from species to species and that they could end up having negative consequences for human beings.
Toxic chemicals, such as plasticizers and flame retardants, that are added to plastics during manufacturing can be released into the environment and can threaten marine animals. Some of the most common plasticizers have been found in fish, marine mammals and mollusks.
Currently, in terms of human health, most of the studies are based on animal models. We do not know the health risks, but since there are potential risks, it would be totally unethical to experiment on human beings. That is why studies are based on animal models, particularly rats, to determine the potential effects on humans.
Any studies involving humans would be long-term observational studies, but the problem with such studies is that by the time the potential consequences for human beings become clear, it could be too late because the toxic effects will already be present.
I can cite some potential effects of products derived from synthetic organic chemistry. For example, aldicarb is highly toxic to the nervous system. Benzene can damage chromosomes and cause leukemia, anemia, and blood disorders. When it comes to vinyl chloride, we often talk about damage to the liver, kidneys and lungs, and cardiovascular and gastrointestinal problems. It is also a carcinogen and a suspected mutagen. A mutagen causes genetic mutation, including in vitro. Chloroform could cause damage to the liver and the kidneys. It is a suspected carcinogen. Dioxins are carcinogens and mutagens that can affect the skin. When we talk about ethylene dibromide, we are talking about cancer and male sterility. Polychlorinated biphenyl can cause damage to the liver, kidneys and lungs. Carbon tetrachloride is a carcinogen. It affects the liver, kidneys, lungs, and central nervous system. High doses of trichloroethylene damage the liver, kidneys, central nervous system and the skin. It is a carcinogen and a suspected mutagen.
As you can see, there are many chemical substances associated with plastic microbeads, which are potentially hazardous to human health. It is quite worrisome.
I have here another study on the many effects of these chemical substances. The study indicates that children and pregnant women are the most affected. What is more, these substances have a huge impact on male reproductive health, including problems with undescended testicles, poor sperm quality, and changes in testosterone levels. The male reproductive system is particularly sensitive to exposure to these chemicals.
Waiting to see what effects these chemicals will have on humans before taking action comes with serious risk. That is why I would recommend that we err on the side of caution when it comes to plastic microbeads. Although there are few studies on humans, there are many studies based on animal models that are very good. I can name several for the Parliamentary Secretary to the Minister of the Environment if he would like. It would be my pleasure.
If we want to respect the principle discussed at the Earth Summit in Rio in 1992, we should exercise caution with respect to plastic microbeads and vote for the motion moved by my colleague from Halifax.