The EPA identified 352 pollutants in biosolids but cannot yet consider these pollutants for further regulation due to either a lack of data or risk assessment tools. Pollutants found in biosolids can include pharmaceuticals, steroids and flame retardants.
Microplastics are making their way into organics fertilisers that are used in both domestic and agricultural settings ( Getty )
Many organic fertilisers being applied to gardens and farms contain tiny fragments of plastic, according to a new study.
Widely considered a problem affecting the oceans, this work suggests microplastics may actually be far more pervasive.
Having entered the soil, the scientists behind the study have warned these tiny fragments could end up in the food we eat.
The production of organic fertilisers is generally considered environmentally friendly as it involves recycling food waste from households and other sources to make useful products that can be used to grow more food.
However, contamination of the waste used to produce these fertilisers – which are used by gardeners and farmers alike – means tiny microplastics are making their way into the soil.
“One example is people use plastic bags and then put everything together in the bin, and then this is entering the waste treatment plant and ending up in the fertilisers,” Professor Ruth Freitag, one of the study’s authors, told The Independent.
Landfill leachate that is transported to the waste water treatment plant then ends up in sewage sludge. Learn more by viewing this film. The part about the leachate begins at fifty-two minutes and twenty-seven seconds.
By Kathleen Doheny
Aug. 16, 2018 -- Heavy metals at levels called ''troublesome'' are lurking in foods commonly eaten by babies and toddlers, according to a new Consumer Reports investigation.
Scientists there studied 50 packaged foods made for children, from cereals to snacks, testing three samples of each. They estimated how much of each food a child typically eats, then looked at medical research on what levels of the heavy metals could cause health issues.
"We found troublesome levels of heavy metals, in particular inorganic arsenic, cadmium, or lead, in every single sample," says James Dickerson, PhD, Consumer Reports' chief scientific officer. "These heavy metals shouldn’t be in food, period.'' They can damage the nervous system, cause cancer, and harm children's development, he says.
Yet, "it's not that surprising'' the heavy metals were there, he says. They are found in nature. Most heavy metals in food come from water or soil contaminated through farming or manufacturing processes, from the use of pesticides, or pollution from leaded gasoline, the report explains.
What was especially concerning, Dickerson says, is that about two-thirds, or 68%, of the tested foods had very high levels of the heavy metals. "What we are concerned about is if you feed your child this [food with high levels of heavy metals], over the lifetime of their development, particularly during birth to 4, then you will have an increased risk of having cancer, for example."
“Mmm, I want a bit of sewage sludge to start my day,” said no one, ever. In today’s modern society, we are so far removed from where our food comes from. However, if most people knew what was going on behind the scenes, they would definitely consider becoming vegetarian before learning to grow all (or at least some) of their own food.
Growing up, I lived across from a farm and it wasn’t uncommon for my dad to use manure in the garden. This is a natural process and when used as a soil conditioner, it can provide plenty of N-P-K (nitrogen, phosphorus and potassium). What’s not natural is the use of sewage, including toxic chemicals and human waste.
Yes, you read that right. “Treated” sewage sludge is being used to grow the foods we eat.
In the unsettling exposé What Lies Upstream, investigative filmmaker Cullen Hoback travels to West Virginia to study the unprecedented loss of clean water for over 300,000 Americans in the 2014 Elk River chemical spill. He uncovers a shocking failure of regulation from both state and federal agencies and a damaged political system where chemical companies often write the laws that govern them.
View full length film until May 1st at http://www.pbs.org/independentlens/videos/what-lies-upstream/
