While green algae is non-toxic, it can affect the smell and taste of the water.
The chances of your 5-gallon water jug dispenser turning green are very high considering water and light are the only two ingredients needed to make algae. While green algae are non-toxic, they can be quite off-putting and can even impact the flavor and smell of your workplace water.
Direct contact with algae can cause irritation to the skin, eyes, ears, nose and mouth. To be safe, people and pets should avoid water affected by algae. Do not use untreated algae-affected water for drinking, showering or washing. Boiling algae-affected water does not remove toxins.
Biofilm is a slimy layer of bacteria, algae, and other microorganisms that can grow in moist environments. This can occur if you don't regularly clean your pitcher or if water sits in it for too long.
Scientists forecast harmful algal blooms. Algal blooms produce toxins and endanger drinking water supplies, causing illness or even death.
Key Takeaways. Experts recommend washing your water pitcher at least every one to two weeks to prevent bacteria, fungi, and mold from growing. If you don't keep your water pitch clean, bacteria can build up in it and could even make you sick.
Clear jugs left in sunlight in a warm room will soon develop a greenish hue — that's algae. While algae in a dirty water cooler may not have the same adverse health effects as harmful bacteria, it can still make your water smell, look, and taste unpleasant.
Although water cooler dispensers can be magnets for bacteria, they are generally safe to use. However, that's only the case as long as you do the work and keep them well maintained. If you don't know how often water dispensers should be cleaned, that probably means you're not cleaning yours often enough.
The easiest and cheapest way to treat your stored water is simply to dose it with household bleach. You only need a tiny concentration, about one teaspoon for every 20 litres of water. If you prefer, you can treat your water as you would a swimming pool, adding four parts chlorine for every million parts water (4ppm).
Regular cleaning and water cooler sanitisation will prevent bacterial growth, maintain the water quality, and protect the health of everyone who uses the dispenser. Bacterial growth: Over time, your water dispenser can quickly become a hotbed of harmful bacteria, such as Legionella or E.
Elevated nutrient levels and algal blooms can also cause problems in drinking water in communities nearby and upstream from dead zones. Harmful algal blooms release toxins that contaminate drinking water, causing illnesses for animals and humans.
There is no way to just look at an algae bloom and tell if it is toxic. Green Algae can be picked up when a stick test is done. If you poke a stick into the algae and the algae grabs on to the stick, is stringy and has a texture, this will tell you that it is a filamentous algae and it is safe.
If your pitcher is left in a warm or sunny area, the algae that is in the filter or in the filtered water may start to grow.
HEALTH IMPACTS
If cyanotoxins over the U.S. Environmental Protection Agency's national 10-day Health Advisory level (see Table 1) occur in tap water, people are at risk of various adverse health effects including upset stomach, vomiting and diarrhea as well as liver and kidney damage.
2 months shouldn't be any problem, assuming the water has been kept in proper conditions and you can't visibly see or taste anything wrong with it. Of course it's always your choice. Feel free to dump it and buy new if you want to be sure.
To avoid contamination with hazardous bacteria and mould such as E. coli, you must clean water dispensers properly. In one examination, more than a quarte of water dispensers contain bacteria. People can become ill as a result of contaminated water dispensers.
The purpose of bleach is to destroy the bacteria that the algae feed on, while creating a hostile environment for the algae itself. If algae enters a tank treated with bleach, it is less likely to grow to dangerous levels. The required ratio is ¼ teaspoon of 5.25% hypochlorite to every gallon of stored water.
Blue-green algae
Perhaps what you should be concerned about is blue-green colour on your water bottle. Blue-green algae, essentially a part of cyanobacterial toxins have been found to bring about human poisoning in Australia, Europe and the Americas.
Water is stored incorrectly - it is located near heat sources, under the influence of sunlight or in prolonged contact with air (we are talking about using water from open bottles). Warm or stagnant water develops blue-green algae (cyanobacteria) that release pigments that cause the water to appear green.
So keeping your water cooler clean gives you the best chance of benefitting from all the watery goodness without any contamination, whether you're using a bottled water cooler or a mains-fed water cooler. For a deep, sanitising clean, your water cooler should be thoroughly cleaned every six months.
Addressing Health Concerns. Water from a dispenser can be healthy, provided that the water source is clean and the dispenser is well-maintained. One of the primary health concerns related to water dispensers is the potential for bacterial contamination, especially if the dispenser is not cleaned regularly.
Algae by itself is not harmful , may even clean up the water to some extent . But it is the dead algae that will putrefy and contaminate the water just like any other putrefaction does .
A little bleach in water or vinegar ( full strength) will kill algae and you don't need a new bottle.
ESSENTIAL TAKEAWAYS
The most common type of algae in drinking water is blue-green algae, or cyanobacteria, which produces dangerous toxins called cyanotoxins. Consuming cyanotoxins can cause symptoms like headache, fever, diarrhea, muscle weakness, dizziness, and liver damage.