{"id":4081,"date":"2025-10-09T10:48:11","date_gmt":"2025-10-09T08:48:11","guid":{"rendered":"https:\/\/studiocampo.eu\/can\/koelvloeistof-gevaarlijk\/"},"modified":"2026-03-01T14:20:46","modified_gmt":"2026-03-01T13:20:46","slug":"coolant-dangerous","status":"publish","type":"post","link":"https:\/\/chemischafvalnederland.nl\/en\/koelvloeistof-gevaarlijk\/","title":{"rendered":"Is coolant dangerous?"},"content":{"rendered":"
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Is coolant dangerous?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Yes, coolant is dangerous because it contains toxic substances that are harmful to humans, animals and the environment. Ethylene glycol in particular can cause severe poisoning if swallowed, and skin contact, inhalation or discharge into the environment also pose risks. Coolant disposal<\/a> should therefore follow chemical waste standards and legislation.<\/p>

Coolant is essential for cooling and protecting engines and machinery, but if misused or disposed of, it can cause serious damage to health and the environment. In this article, you will find out why coolant is dangerous, what the environmental consequences are and how to store it safely and have it disposed of according to applicable environmental legislation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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What's in coolant?<\/h2>

Coolant consists of a mixture of water, glycol (usually ethylene or propylene glycol) and additives such as inhibitors against corrosion, oxidation and foaming. This combination keeps engines at temperature, but also makes coolant chemically harmful.<\/p>

Over time, the fluid ages: the additives break down, and heavy metals, oil residues and acids may form. These breakdown products are toxic and should not be released into the environment.<\/p>

Why is coolant dangerous?<\/h2>

Coolant is dangerous because it contains substances that are toxic if swallowed or in contact with the skin. Ethylene glycol in particular is highly harmful to humans and animals, as just a few millilitres can be fatal if ingested. When burned or discharged, coolant can also affect surface water, soil and air quality.<\/p>

Propylene glycol is a safer alternative and is sometimes used in human-contact applications (such as refrigeration units in the food industry), but this variant also falls into the chemical waste category once contaminated.<\/p>

Therefore, used coolant is always considered hazardous waste, and should not end up in the sewer or with residual waste.<\/p>

The environmental impact of coolant<\/h2>

The environmental impact of coolant is significant when it is improperly disposed of or spilt. Glycol and additives biodegrade, but that process consumes a lot of oxygen in the water. This causes oxygen deficiency, which suffocates fish and other aquatic organisms.<\/p>

In addition, heavy metals and chemicals from coolant can soak into the soil and contaminate groundwater. This affects not only ecosystems, but also drinking water quality.<\/p>

By having coolant properly collected and recycled through an authorised processor such as Chemisch Afval Nederland, you prevent these harmful substances from entering the environment.<\/p>

Coolant poisoning<\/h2>

Coolant poisoning occurs when ethylene glycol or propylene glycol is swallowed, inhaled or absorbed through the skin. Ethylene glycol in particular is extremely dangerous: it is converted in the body into toxic acids that lead to kidney failure, loss of consciousness or even death.<\/p>

Symptoms of coolant poisoning<\/h3>

These are the symptoms of coolant poisoning:<\/p>