How Weight Gain During Pregnancy Could Protect Your Baby From Toxic Chemicals
Gaining more weight during pregnancy can substantially reduce a baby’s exposure to pesticides that accumulate in a mother’s body, according to new research.
Pregnant women who don’t gain enough weight lose fat when the fetus grows. This releases fat-soluble chemicals such as DDT into the bloodstream, which reaches the fetus.
“This study suggests that sufficient weight gain during pregnancy may help to dilute certain chemicals that store in fat, reducing exposure to the fetus,” said Jonathan Chevrier, an epidemiologist at McGill University in Montreal who did not participate in the research.
Exposure to persistent organic pollutants, or POPs, in the womb has been linked to developmental disorders and learning delays, reduced immune system function and changes in hormones.
Only a few studies have investigated how pregnancy weight gain may affect a baby’s exposures.
In the new study, scientists compared weight gain for 325 expectant mothers from Avilés, Spain, with the levels of 35 chemicals in their babies’ umbilical cord blood. Included were brominated flame retardants, organochlorine pesticides such as DDT and polychlorinated biphenyls, or PCBs.
The babies’ exposure to all the chemicals decreased as pregnancy weight gain increased, according to the study. However, when the scientists accounted for other factors known to influence concentrations—such as a mother’ s age and how much fish she ate—the association was significant for only two chemicals: a byproduct of the insecticide lindane called beta-HCH and a DDT metabolite.
DDT was banned in the U.S. in 1972 because it was building up in the environment. Agricultural use of lindane was banned in 2006 due to concerns over its effects on the nervous system.
For every pound of pregnancy weight gain, the researchers saw a 0.75 percent decrease in DDE in the cord blood and a 1.4 percent decrease in beta-HCH. For the average woman who gained about 31 pounds during pregnancy, that’s about a 22 percent decrease in DDE and a 42 percent decrease in beta-HCH.
The researchers from Spain’s University of Oviedo wrote that if a pregnant woman has inadequate body fat, she could lose fat stores during the last trimester, when the baby grows rapidly. “This mobilization effect to meet the fetal demand may trigger the release of POPs to the bloodstream, where they may become available and cross the placenta barrier,” they said in the journal Environmental Health Perspectives.
The U.S. Institute of Medicine and the World Health Organization recommend that normal-weight women (determined by the Body Mass Index) gain between 25 and 35 pounds during pregnancy. In the new study, more than 40 percent of mothers gained excessive weight while 25 percent of mothers gained too little. Mothers were asked to recall their own starting weight, so it’s possible that some may have gained more or less than recorded.
For PCBs, there may have been no significant link to weight gain because the mothers’ consumption of fish is a stronger factor determining their babies’ exposures. PCBs have been linked to reduced IQs and other effects in children exposed in the womb.
YOU MIGHT ALSO LIKE
In a dramatic rescue captured on camera, a Florida man ran into a pond and pried open an alligator's mouth in order to rescue his beloved puppy, all without dropping his cigar.
- 'He had green eyes': Florida man will paint alligator that attacked him ›
- Florida alligator attack: A woman was attacked by a 10-foot alligator ... ›
- Weird presidential pets include alligator, tiger cub, dog named Satan ... ›
- Alligators make terrible pets: 'You're basically dealing with a dinosaur.' ›
EcoWatch Daily Newsletter
Jean-Marc Neveu and Olivier Civil never expected to find themselves battling against disposable mask pollution.
When they founded their recycling start-up Plaxtil in 2017, it was textile waste they set their sights on. The project developed a process that turned fabrics into a new recyclable material they describe as "ecological plastic."
Mounting Piles of Waste<p>It is not only the streets of Chatellerault where pandemic pollution is piling-up, but also the world's beaches and oceans. Once there, they can take up to 450 years to degrade and disappear.</p><p>Esther Röling, co-organizer of the annual Adventure Clean Up Challenge held on Hong Kong Island, has seen this waste firsthand. In October the sports challenge pitted teams against one another in a competition to remove trash from 13 hard-to-reach coastal areas around the city.</p><p>They find tons of both disposable and reusable masks, said Röling. "You wonder how it ended up there. Was it just thrown on the ground? Or was it in a garbage bag that broke open?"</p><p>Almost 10,000 kilometers away in Antibes on the sunny French Riviera, it's a similar picture. For the past few months, divers and clean-up volunteers working with an ocean clean-up non-profit called Operation Mer Propre have been collecting an increasing number of masks found on land and in the sea.</p><p>"Since the beginning of the lockdown when we started to count, we've reached 800, 900, [and now in total] 1000 masks," said co-founder Joko Peltier. </p><p>According to <a href="https://unctad.org/news/growing-plastic-pollution-wake-covid-19-how-trade-policy-can-help" target="_blank">UN estimates</a>, up to 75% of all coronavirus-related plastic could end up as waste in oceans and landfills.</p>
The Limits of Recycling<p>Yet not all are convinced the recycling of this waste is possible on a global scale. </p><p>"What those citizen groups are doing is really beneficial but once they collect it, it should just go to a landfill or an incinerator. They shouldn't necessarily expect it to get recycled," said Jonathan Krones, an industrial ecologist and visiting assistant professor of environmental studies at Boston College.</p><p>That's because mask recycling programs like Plaxtil are few and far between and most don't have the benefit of a readily adaptable production process. </p><p>Even in countries with solid recycling infrastructure, he says, the system is designed to separate out specific types of waste like bottles or cardboard.</p><p>"I imagine that it would be technically feasible to develop a separation process to filter out masks, but there simply aren't enough of them to make that economical," he said.</p><p>Collection is a big hurdle, he adds. Since each mask only weighs a fraction of a gram and they're scattered on roads or mixed with other trash, it is difficult and costly. </p><p>"You need a lot of raw material of the right quality to make investing in the recycling technology and the recycling system worthwhile," he said.<span></span><br></p>
Hemp, Sugar Cane and Sustainable Alternatives<p>Some projects are instead addressing the material used to make masks.</p><p>French company Geochanvre have created a mask made primarily from hemp, while in Australia, researchers at the Queensland University of Technology are experimenting with a disposable product made from agricultural waste. </p><p>Biodegradable options are exciting alternatives to reduce the fossil fuels needed for the creation of plastic-based masks, said Krones, but they don't absolve the wearer from the responsibility of what happens afterwards. </p><p>Bio-based masks often need their own composing solutions, he explains, because in landfill they can produce high amounts of the greenhouse gas methane when anaerobic bacteria feeds on the organic material. Methane is known to be significantly more potent than carbon dioxide.</p><p>"I think as long as we have in our mind that we want to have disposability, we're going to have to wrestle with a variety of different sorts of environmental tradeoffs," he said, adding that reusable, fabric masks are the best option available to most people.</p><p>Precimask is developing a clear face covering with an optional visor made from hard plastic, designed to be long-lasting.<br></p><p>Air enters either side of the cheeks through a technology normally found in pool filters and car exhaust systems, said company spokeswoman Juliette Chambet.</p><p>"We wanted to make ceramic-based filters that would be washable and cleanable, which would allow them to be reused as many times as desired without having to buy a new consumable or produce waste," she said. </p><p>Ultimately, encouraging mask wearers to think about the entire lifecycle of a mask is key, explains Neveu. </p><p>"We want people who put on the masks to realize that they are also responsible for the waste, he said. "It's not inevitable that this [pandemic] will become an environmental catastrophe.</p><p><em>Reposted with permission from </em><em><a href="https://www.dw.com/en/covid-19-recycling-pollution-trash-pandemic/a-55707817" target="_blank">Deutsche Welle</a>.</em><a href="https://www.ecowatch.com/r/entryeditor/2649032193#/" target="_self"></a></p>
- Coronavirus Plastic Waste Polluting the Environment - EcoWatch ›
- Scuba Divers Make Face Masks out of Recycled Ocean Plastic ... ›
By Bret Wilkins
In a year in which the United States has already suffered 16 climate-driven extreme weather events causing more than $1 billion in economic damages, and as millions of American workers face loss of essential unemployment benefits due to congressional inaction, a report published Monday reveals the Trump administration has given fossil fuel companies as much as $15.2 billion in direct relief — and tens of billions more indirectly — through federal COVID-19 recovery programs since March.
- 'We Need People's Bailout, Not Polluters' Bailout': Climate Groups ... ›
- Corporate Polluters Have Received Tens of Millions in PPP Loans ... ›
- Trump Bails Out Oil Industry, Not U.S. Families, as Coronavirus ... ›
- Former Federal Reserve Governor Rebukes Fed for Fossil Fuel Bail ... ›
By Ashia Aubourg
As Thanksgiving approaches, some Indigenous organizations and activists caution against perpetuating further injustices towards Native communities. Indigenous activist Mariah Gladstone, for example, encourages eaters to celebrate the harvest time in ways that do not involve stereotypes and pilgrim stories.
- Why Face Masks Belong at Your Thanksgiving Gathering + 7 Things ... ›
- Reasons to Be Thankful — 8 Food and Farm 'Good News' Stories ... ›
- Why I'm Going to Standing Rock for Thanksgiving - EcoWatch ›
By Alex Middleton
Losing weight and reducing fat is a hard battle to fight. Thankfully, there are fat burner supplements that help you gain your target body and goal. However, how would you know which supplement is right for you?