{"id":2462,"date":"2024-08-05T08:30:24","date_gmt":"2024-08-05T12:30:24","guid":{"rendered":"https:\/\/backflow-shop.com\/?p=2462"},"modified":"2025-06-10T15:00:26","modified_gmt":"2025-06-10T19:00:26","slug":"contaminants-in-water-the-5-most-important","status":"publish","type":"post","link":"https:\/\/backflow-shop.com\/en\/contaminants-in-water-the-5-most-important\/","title":{"rendered":"Contaminants in water; the 5 most important"},"content":{"rendered":"<p>It is not uncommon to receive boil water advisories as well as communications asking residents to run the water before consuming it. These measures are taken by municipalities when they detect a risk of contamination in the drinking water network. The following question then arises: what are these contaminants in water?<\/p>\n<h2><strong>Perfluoroalkyl and Polyfluoroalkyl substances (PFAS)<\/strong><\/h2>\n<p>Perfluorinated substances are a family of chemical compounds present in many everyday items. These are found particularly in food packaging, pesticides, paint and water- and stain-resistant products<sup>1<\/sup>. <span class=\"Y2IQFc\" lang=\"en\">It is by being absorbed by the soil and transported by rain that PFAS are then found in the drinking water network<\/span><sup>2<\/sup>.<\/p>\n<p>According to a study carried out by the University of Montreal, the situation of contaminants in water is pretty bad. In facts, 99.3% of drinking water in Quebec contains PFAS! Long-term consumption of PFAS can lead to health problems such as cancer risks and a weakened immune system<sup>3<\/sup>.<\/p>\n<h2><strong>Lead<\/strong><\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignleft wp-image-2440 size-medium\" src=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Tuyau-C-300x225.jpg\" alt=\"contaminants in water - Pipe with rust inside\" width=\"300\" height=\"225\" srcset=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Tuyau-C-300x225.jpg 300w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Tuyau-C-600x450.jpg 600w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Tuyau-C.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Lead can be found in the drinking system following the dissolution of lead already present in the pipes and in the solders. In the 1940s and 1950s, it was not uncommon to see lead pipes being installed.<\/p>\n<p>However, the National Plumbing Code now limits its use.<\/p>\n<p>For lead consumption to have a real effect on health, it must be regular, long-term or in high concentration. Such consumption could cause vomiting, anemia and dizziness<sup>4<\/sup>. However, for occasional consumption and low concentration, the health risks are slim<sup>5<\/sup>.<\/p>\n<h2><strong>Trihalomethanes (THMs)<\/strong><\/h2>\n<p>THMs are chemicals that are formed when chlorinated water comes into contact with organic substances. Since it is a highly volatile contaminant that degrades in the air, its concentration in the drinking water network can vary depending on the ways and products that are used to treat it.<\/p>\n<p>In Quebec, water is treated and analyzed so that the annual average THM in water does not exceed 80mg per liter. This regulation is the strictest in Canada. Since the allowable quantity of THM in water is low, very large amounts would have to be consumed over several years to notice its effects on the body<sup>6<\/sup>.<\/p>\n<h2><strong>Microplastics<\/strong><\/h2>\n<p><img decoding=\"async\" class=\"alignright wp-image-2442 size-medium\" src=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-300x225.jpg\" alt=\"contaminants in water - Accumulation of plastic waste\" width=\"300\" height=\"225\" srcset=\"https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-300x225.jpg 300w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-1024x768.jpg 1024w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-768x576.jpg 768w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-1536x1152.jpg 1536w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-2048x1536.jpg 2048w, https:\/\/backflow-shop.com\/wp-content\/uploads\/2024\/08\/Plastique-C-600x450.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Microplastics form when objects such as straws, tires, or single-use bags degrade in water. This creates small plastic fibres that pass through the water filtration process and end up in the drinking water system<sup>7<\/sup>.<\/p>\n<p>Since studies on the effects of microplastics on the body are recent, questions still remain. However, experts believe that these could have an impact on the organs and the reproductive system<sup>8<\/sup>.<\/p>\n<h2><strong>E. coli<\/strong><\/h2>\n<p>E. coli bacteria are contaminants that come from fecal matters and are then carried into the water system.<\/p>\n<p>Consuming water contaminated with E. coli can lead to vomiting, nausea and diarrhea<sup>9<\/sup>.<\/p>\n<p>In more severe cases, E. coli can lead to death<sup>10<\/sup>.<\/p>\n<p>To learn more about the effects of this bacterium, we invite you to read the following article from Darspec:\u00a0<a href=\"https:\/\/www.darspec.com\/en\/blog\/2024\/07\/11\/walkerton-tragedy:-why-protect-drinking-water\/\">Walkerton tragedy: why protect drinking water?<\/a><\/p>\n<h2>What to remember?<\/h2>\n<p>To conclude, even if the effects of contaminants on health are often more visible in the long term, they can still affect people with vulnerable health following short-term consumption. However, it is important to mention that filtration plants work continuously to adequately filter and eliminate contaminants in water. The role of building owners then kicks in, that of protecting their drinking water network. It would be a shame to waste and contaminate the water which municipalities spend so much effort and money. As an owner, manager or user, what are you doing to protect and save drinking water in your building?<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #d6eef0;\">Article by Marianne Raymond, published August 5th, 2024, extracted from <span style=\"text-decoration: underline;\"><strong><a href=\"https:\/\/www.darspec.com\/en\/\" target=\"_blank\" rel=\"noopener\">Darspec<\/a><\/strong><\/span>.<\/span><\/p>\n<h3><strong>References :<\/strong><\/h3>\n<p>1. Institut national de sant\u00e9 publique du Qu\u00e9bec. (2023, ao\u00fbt 17). PFAS : d\u00e9finition et utilisation. R\u00e9cup\u00e9r\u00e9 sur Gouvernement du Qu\u00e9bec:\u00a0<a href=\"https:\/\/www.inspq.qc.ca\/pfas\/pfas-definition-et-utilisation\">https:\/\/www.inspq.qc.ca\/pfas\/pfas-definition-et-utilisation<\/a><\/p>\n<p>2. DiproClean. (s.d.). Les PFAS sont des polluants \u00e9ternels qui menacent notre sant\u00e9 : quelles sont les solutions pour les \u00e9liminer dans votre environnement ? R\u00e9cup\u00e9r\u00e9 sur DiproClean:\u00a0<a href=\"https:\/\/www.diproclean.com\/pfas-polluant-eau-potable-eliminer-solutions-pxl-167_202.html#:~:text=au%20charbon%20actif-,Qu'est%2Dce%20que%20les%20PFAS%20%3F,eau%20et%20%C3%A0%20la%20graisse\">https:\/\/www.diproclean.com\/pfas-polluant-eau-potable-eliminer-solutions-pxl 167_202.html#:~:text=au%20charbon%20actif-,Qu&#8217;est%2Dce%20que%20les%20PFAS%20%3F,eau%20et%20%C3%A0%20la%20graisse<\/a><\/p>\n<p>3. Universit\u00e9 de Montr\u00e9al. (2023, f\u00e9vrier 27). PFAS pr\u00e9sentes dans l&#8217;eau potable au Qu\u00e9bec : cinq<br \/>\nmunicipalit\u00e9s en eau trouble . R\u00e9cup\u00e9r\u00e9 sur udem nouvelles :\u00a0<a href=\"https:\/\/nouvelles.umontreal.ca\/article\/2023\/02\/27\/pfas-presentes-dans-l-eau-potable-au-quebec-cinq-municipalites-en-eau-trouble\/\">https:\/\/nouvelles.umontreal.ca\/article\/2023\/02\/27\/pfas-presentes-dans-l-eau-potable-au-quebec-cinq-municipalites-en-eau-trouble\/<\/a><\/p>\n<p>4. Gouvernement du Canada, (2019, mars). Recommandations pour la qualit\u00e9 de l\u2019eau potable au<br \/>\nCanada : document technique \u2013 le plomb. R\u00e9cup\u00e9r\u00e9 sur Gouvernement du Canada :\u00a0<a href=\"https:\/\/www.canada.ca\/fr\/sante-canada\/services\/publications\/vie-saine\/recommandations-pour-qualite-eau-potable-canada-document-technique-plomb\/document-reference.html#a9.1\">https:\/\/www.canada.ca\/fr\/sante-canada\/services\/publications\/vie-saine\/recommandations-pour-qualite-eau-potable-canada-document-technique-plomb\/document-reference.html#a9.1<\/a><\/p>\n<p>5. Gouvernement du Qu\u00e9bec. (2021, mars 26). Plomb. R\u00e9cup\u00e9r\u00e9 sur Gouvernement du Qu\u00e9bec:\u00a0<a href=\"https:\/\/www.quebec.ca\/agriculture-environnement-et-ressources-naturelles\/eau-potable\/contamination-eau-reseau-distribution\/plomb\">https:\/\/www.quebec.ca\/agriculture-environnement-et-ressources-naturelles\/eau-potable\/contamination-eau-reseau-distribution\/plomb<\/a><\/p>\n<p>6. Institut national de sant\u00e9 publique du Qu\u00e9bec. (2022, d\u00e9cembre). Trihalom\u00e9thanes. R\u00e9cup\u00e9r\u00e9 sur<br \/>\nGouvernement du Qu\u00e9bec: <a href=\"https:\/\/www.inspq.qc.ca\/eau-potable\/trihalomethanes\">https:\/\/www.inspq.qc.ca\/eau-potable\/trihalomethanes<\/a><\/p>\n<p>7. Kinetica. (2024, avril 12). Que sont les microplastiques ? . R\u00e9cup\u00e9r\u00e9 sur Kinetico:\u00a0<a href=\"https:\/\/resourcecenter.kinetico.ca\/fr\/problemes-courants-relatifs-a-l-eau\/les-microplastiques-dans-l-eau\/\">https:\/\/resourcecenter.kinetico.ca\/fr\/problemes-courants-relatifs-a-l-eau\/les-microplastiques-dans-l-eau\/<\/a><\/p>\n<p>8. Legault, J.-B. (2024, janvier 23). L&#8217;eau embouteill\u00e9e contiendrait de grandes quantit\u00e9s de lastiques microscopiques . R\u00e9cup\u00e9r\u00e9 sur La Presse:\u00a0<a href=\"https:\/\/www.lapresse.ca\/actualites\/sciences\/2024-01-23\/l-eau-embouteillee-contiendrait-de-grandes-quantites-de-plastiques-microscopiques.php\">https:\/\/www.lapresse.ca\/actualites\/sciences\/2024-01-23\/l-eau-embouteillee-contiendrait-de-grandes-quantites-de-plastiques-microscopiques.php<\/a><\/p>\n<p>9. Gouvernement du Qu\u00e9bec. (2016, ao\u00fbt 22). Escherichia coli (E. coli), coliformes f\u00e9caux ou<br \/>\nent\u00e9rocoques &#8211; Avis d&#8217;\u00e9bulition. R\u00e9cup\u00e9r\u00e9 sur Gouvernement du Qu\u00e9bec:\u00a0<a href=\"https:\/\/www.quebec.ca\/agriculture-environnement-et-ressources-naturelles\/eau-potable\/contamination-de-leau-reseau-de-distribution\/e-coli-coliformes-fecaux-ou-enterocoques\">https:\/\/www.quebec.ca\/agriculture-environnement-et-ressources-naturelles\/eau-potable\/contamination-de-leau-reseau-de-distribution\/e-coli-coliformes-fecaux-ou-enterocoques<\/a><\/p>\n<p>10. Institut Pasteur. (2024, f\u00e9vrier). Escherichia coli ent\u00e9roh\u00e9morragiques (ECEH). R\u00e9cup\u00e9r\u00e9 sur<br \/>\nInstitut Pasteur : <a href=\"https:\/\/www.pasteur.fr\/fr\/centre-medical\/fiches-maladies\/escherichia-coli\">https:\/\/www.pasteur.fr\/fr\/centre-medical\/fiches-maladies\/escherichia-coli<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It is not uncommon to receive boil water advisories as well as communications asking residents to run the water before consuming it. These measures are taken by municipalities when they detect a risk of contamination in the drinking water network. The following question then arises: what are these contaminants in water? Perfluoroalkyl and Polyfluoroalkyl substances [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":2446,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-2462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Contaminants in water; the 5 most important - Backflo Shop<\/title>\n<meta name=\"description\" content=\"Boil water advisories are usually caused by contaminants in water. 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