Posted on 11/03/2024 10:10:04 AM PST by ConservativeMind
Phthalates are recognized as reproductive toxins and carcinogenic substances.
A recent study highlights the ongoing exposure of Southern Californians to hazardous air pollutants known as plasticizers, including a chemical that has been prohibited in children’s products and cosmetics.
Plasticizers are chemical compounds that make materials more flexible. They are used in a wide variety of products ranging from lunchboxes and shower curtains to garden hoses and upholstery.
“It’s not just for drinking straws and grocery bags,” said David Volz.
Previous California monitoring programs focused on plasticizers called ortho-phthalates, some of which were phased out of manufacturing processes due to health and environmental concerns. Less research has focused on the health effects of their replacements, called non-ortho-phthalates.
This study revealed the presence of both types of plasticizers in the air throughout Southern California.
“The levels of these compounds are through the roof,” Volz said. “We weren’t expecting that. As a result, we felt it was important for people to learn about this study.”
The researchers tracked two groups of UCR undergraduate students commuting from different parts of Southern California. Both groups wore silicone wristbands designed to collect data on chemical exposures in the air.
The first group wore their wristbands for five days in 2019, and the second group wore two different wristbands for five days each in 2020. Both groups wore the bands continuously, all day, as they went about their activities. At the end of the data collection period, the researchers chopped the wristbands into pieces, then analyzed the chemicals they contained.
In a previous paper, the team focused on TDCIPP, a flame-retardant and known carcinogen, picked up in the wristbands. They saw that the longer a student’s commute, the higher their exposure to TDCIPP.
Unlike TDCIPP, which most likely migrates out of commuters’ car seats into dust, the team cannot pinpoint the origin of the plasticizers. Because they are airborne, rather than bound to dust, the wristbands could have picked them up anywhere, even outside the students’ cars.
For every gram of chopped-up wristband, the team found between 100,000 and 1 million nanograms of three phthalates, DiNP, DEHP, and DEHT. Ten total plasticizers were measured, but the levels of these three stood out.
Both DiNP and DEHP are included on California’s Proposition 65 list, which contains chemicals known to cause cancer, birth defects, or other reproductive harm. DEHT was introduced as an alternative, but its effects on human health have not been well studied.
This study suggests that introducing DEHT also has not done much to reduce the public’s level of exposure to DiNP or DEHP. Levels of all three chemicals found by Volz and his team were similar to those found by researchers in unrelated studies conducted on the East Coast.
“No matter who you are, or where you are, your daily level of exposure to these plasticizer chemicals is high and persistent,” Volz said. “They are ubiquitous.”
To Volz, studies like this one amplify the need to find alternatives to plastic. As plastics degrade, these compounds and others like them are leaching out into the environment and into the body.
“The only way to decrease the concentration of plasticizers in the air is to decrease our production and consumption of materials containing plasticizers,” he said.
But I thought Newsome banned plastic grocery bags and plastic straws! How could this happen?
I worked for many years as a Hazmat Officer in charge of a Hazmat Team. We had a saying, “The solution to pollution is dilution.” In almost every case this means that below a certain level even extremely toxic substances are harmless. This certainly applies in this situation. The most harmful aspect of this type of story is the anxiety that it causes in many people.
They could say .1-1ppm (Part per million), but that’s not as frighteningly dramatic...
Yikes. I lived in CA for twenty years, but that was a long time ago. I don’t believe we were soaked in chemicals then.
They only measured these chemicals in “commuters” and admit they don’t know where they came from. What kind of car were they in, were the windows open, how new was the car, were they on a bus? A train? Etc. there is so much missing from this study as to not really mean much other than to gin up fear.
I am sure there is a lot of weird stuff being inhaled along SoCal freeways but I don’t see any conclusions about the rest of the areas.
But then again. Trust the science...
1,000,000 nanograms = 0.001 grams
I think you are quite a bit off.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.