EPA Designates Forever Chemicals as Hazardous Substances

Synthetic human-made chemicals called PFAS have been rapidly infiltrating many of the world’s vital water supplies, damaging Earth’s environment in the process. These per-and polyfluoroalkyl substances (PFAS) are incredibly difficult to break down, often lasting for thousands of years, even contaminating rainfall in certain regions. With increasing knowledge over the last few decades, the United States Environmental Protection Agency (EPA) has decided to submit an official proposal to classify many of these chemicals as hazardous substances, influencing many additional federal protocols associated with their use and disposal. The decision also comes as new research has been exploring better ways for PFAS management and disposal. 

Many PFAS are common household products like cooking pans, oils, cleaning supplies, and abrasives. PFAS chemicals often produce coatings and products that can repel water, oil, heat, and grease. The chemicals are dangerous because they break down slowly and have been observed leaching into water and soil, leaving trace amounts detectable in the blood of humans and animals. 

Recent studies about the effects of exposure to PFAS suggest earlier assumptions were incredibly limited concerning the risks and knowledge of dangerous exposure levels. Prolonged exposure can result in reproductive complications, heart issues, respiratory disease, cancer, and immunosuppressant responses in communities. PFAS causes various complications as they primarily settle in the body’s blood, kidneys, and liver. These chemicals have been in the commercial market since the 1940s, and previous studies suggest they are present in more than 98 percent of the US population. 

The EPA’s submitted proposal will list at least two of these harmful PFAS as hazardous substances, encouraging effective waste management at facilities that handle these chemicals, with much more likely to be added later. The Federal Drug Administration and many chemical manufacturers have already voluntarily phased out the use of these chemicals, especially in commodities that deal directly with food products. However, the unfortunate reality still suggests more than 70 percent of imported products still contain remnants of older PFAS. Since these chemicals are so slow to break down, they easily contaminate products transported into air, dust, food, ground soil, and water.  

The EPA’s decision to begin managing PFAS use and disposal has had to navigate complicated relationships with the prominent chemical industry leaders, but at the neglect of community and environmental health. Critics of the EPA’s new proposal claim the action is a little too late, without any real repercussions or plans to mitigate the damages from the prolonged incorporation of these harmful chemicals in American communities. The other misfall of the EPA’s new proposal is that it fails to address any future solutions, only acknowledging current problems and only a few harmful PFAS. 

There is little acknowledgment in the proposal to develop plans for future mitigation as these hazardous chemicals continue to leach into the environment and are already waning vital resources of fresh water. Although the proposal may lack future mitigation efforts, chemical scientists have been researching how to dispose of these chemicals effectively, and there may still be some good news. 

Scientists have discovered that effective use of heat in contaminated water can initiate a chemical reaction to break down the strong PFAS bonds, removing them from the water without any remaining byproducts. This new information means water processing plants can effectively remove the harmful PFAS from water without releasing any byproducts into the environment, gradually diminishing their communal effects globally.

Are Blue Carbon Habitats the New Trend?

As climate change continues to affect environments worldwide, many regions are investing in resource development projects to create blue carbon habitats that sequester atmospheric carbon and reduce urban footprints in nature. Restored blue carbon habitats are quickly appearing along coastlines worldwide, and many scientists have mixed reviews over their contributions to carbon sequestration on a global scale. 

Blue carbon habitats along coastlines are a natural phenomenon observable in mangroves, saltmarshes, and seagrass meadows. These vital coastal habitats sequester large amounts of carbon from the atmosphere and serve as an essential barrier to storm surges and water inundation. Many coastal areas have been degraded due to modernization. Mangrove forests are bulldozed to make way for new beach high rises, and seagrass meadows are quickly eradicated. 

These invaluable coastal habitats support an array of life, with some of the highest biodiversity found anywhere in the world. Areas like mangroves often involve a community of intertwined plants and foliage that create an almost impenetrable wall, preventing the onset of incoming storm surges and rising water levels from reaching areas of land on their adjacent side. After removing large sections of mangrove forests, areas in Florida along the southeastern United States faced millions of dollars in damages after previously mundane tropical storms escalated into national disasters without any natural barriers. What was once a moderate storm surge quickly turned into urban flooding, beach erosion, and unprecedented damages. 

As environmentalists and lawmakers quickly realized the monetary and public safety significance of such vital resources, they began investigating ways to restore and instill new habitat areas that can contribute the same kind of preventative measures these areas once had. The additional benefit of these coastal regions’ ability for carbon sequestration increased their market value on a global scale, as it was thought that large-scale climate change could even be combated. 

Conservation of these regions provides natural climate solutions by conserving greenhouse gas emissions stored inside of their systems and by increasing the carbon dioxide drawn down as areas are restored or created. Experts argue the individual use of these systems to reduce carbon emissions in the atmosphere is negligible on a global scale and should only be practically used as a mitigation measure while focusing on preserving their valuable biodiversity potential. 

The presumed carbon footprint benefits of restoring coastal ecosystems must have contributions from elsewhere. Otherwise, atmospheric carbon will continue to provoke future climate change. These blue carbon habitats and the associated movement will still have lasting impacts on coastal biodiversity and infrastructure defense, even if their carbon impacts are not as significant as previously thought.

Coastal regions should continue to develop and explore the benefits of restoring their coastal ecosystems to restore natural balance to their native flora and fauna while also contributing to mitigating carbon emissions in the atmosphere.

Dangers of Extreme Heat Faced by Outdoor Workers

Many outdoor workers face a common problem every year: managing summer heat and health complications while on the job. Summer temperatures in southern regions of the United States and other parts of the world are increasing yearly, posing additional risks to these types of employees. However, the risks and complications are not equally imposed, and different types of workers may be at even higher risk, according to experts. 

Three of the hottest cities in the United States where workers are at increased risk include Phoenix, Los Angeles, and Las Vegas. Certain studies have explored the relationship between heat indexes in these southwestern states and work-related injuries, revealing expected trends toward higher temperatures and people getting sick. 

These higher-than-average temperatures often reach more than 88°F during the summer and can cause many health complications. Extended exposure to exorbitant heat can result in dehydration, unconsciousness, heat stroke, and lack of perspiration. Severe heat exposure cases can damage internal organs, disrupting the central nervous system, blood clotting, liver functions, and kidneys.

Due to complications imposed by global warming, summer temperatures continue to increase and expose workers to heat waves, droughts, and higher temperatures. Outdoor workers that face these temperature challenges include industries such as agriculture, construction, maintenance, recreation, and more. Heat-related injuries can keep workers out of a job, sometimes up to 30 days, while healing. The extended recovery times for workers who have experienced heat-related injuries can significantly impact employees and their families. The risks of these work-related injuries impact the lower-class workers at an even higher rate. Researchers also discovered a higher percentage of female workers reported heat-related injuries.

Studies between 2011 and 2018 suggested an increase from 50 to 86 percent of people affected by work-related heat injuries identified as female. The increase in the disproportionate cases of affected female workers may result in more women entering the workforce, specifically into roles within outdoor industries. These results have inspired further research into the hormonal risk component associated with the different heat risks between sexes. Specific biological cycles may place women at higher risks than their male counterparts. 

Another demographic at greater risk of heat-related injuries includes long-standing employees. The same study found that increased work heat complications correlated with increased length of stay at the worker’s company. Employees with five or more years of experience were at a greater risk of work-related heat injuries than employees with less than one year. Experts suggested the increased risk of these long-standing employees may be due to the lack of risk perception or the cumulative tolerance built from chronic heat exposure during their years of service. 

More research is being conducted on the types of employees at the most significant risk and different safety methods these vital outdoor industries can implement to decrease heat-related health implications.

Monkeypox Silently Spreading Around the World

Officials are on high alert as monkeypox outbreaks continue to appear in various parts of the world. These new cases are particularly alarming because of the high transmissibility, and amidst the ongoing covid-19 pandemic still crippling many parts of global society. 

The Monkeypox virus is historically localized to western and central regions in Africa, but scientists think they have traced the current spread to an outbreak in 2017. The World Health Organization has recorded 643 cases in more than a dozen countries. The rapid outbreaks suggest the disease may have undetected transmission, allowing it to spread and appear simultaneously in different locations. The 2017 outbreak resulted in clusters of cases in Singapore, Africa, Israel, and the UK.

Other experts disagree with initial findings stating we do not know how long this virus has spread. Initially, it was thought the disease spread from direct contact with an infected animal like a rodent; however, reports now suggest there are sustained transmission events between humans and back to animals. The rapid transmission between humans and animals contributes to the inconclusive of the outbreak’s origins. If outbreaks continue expanding, it is likely to be transferred from humans into other wildlife populations outside infected regions, resulting in additional undetectable transmissions to larger global populations. 

Most historical breakouts of monkeypox ended after a short period of transmission between humans, while recent cases in new places and populations are cause for concern. The former 2017 cluster was prevalent in men and appeared as lesions on genitalia transmitted through sexual contact. The current outbreak appears as lesions on various parts of the body, and the sexual transmissibility of the disease is inconclusive and not fully understood. This virus is similar to smallpox but much less deadly with treatment. Poverty-stricken areas may experience higher rates of complications resulting in deaths due to the lack of accessible resources. 

The US Centers for Disease Control continues to monitor its spread because it is too early to understand its origins or long-term impacts fully. The response may escalate if it evolves into a human-born pathogen spreading directly to the immunocompromised, young, and elderly, where it will cause the most severe damage. Still, many people following the news coverage and disease investigations feel the stress, as daily life has only recently returned to a sense of normalcy.

If the covid-19 pandemic proved one thing, the world is poorly prepared to deal with any global disease outbreak. Humans have few options to prevent widespread outbreaks of highly transmissible diseases effectively. Officials not wanting a repeat of the global pandemic over the last two years are approaching these cautionary cases with the utmost urgency and attempting to instill measures to prevent another global catastrophe.

How an Invasive Species Turned Into a Delicacy

A new entree has recently expanded across many restaurant menus in the southeastern United States, hoping to aid management efforts and reduce environmental destruction caused by invasive lionfish in the Caribbean. 

Invasive species are organisms not native to an ecosystem that causes harm to other species, habitats, or human health. Species are more likely to become invasive if they reproduce quickly, spread aggressively, and take advantage of new habitats. There are many examples of invasive species throughout history, and most are the unfortunate result of human expansion and global connectivity. Animals are often introduced purposefully or by accident from travel, shipping, and as a means of population control. 

Introduced species outcompete native populations for vital resources and habitat, restructuring food webs that result in cascading ecosystem effects. The success of an invasive species in a foreign environment relies on the lack of natural predators in the new ecosystem, allowing that species to dominate the native organisms. Invasive species also contribute to diseases preventing successful reproduction and altering entire ecosystems. 

There are invasive species worldwide, and many environmental scientists are working diligently to eradicate them out of native ecosystems, but doing so is a monumental task. Many invasive species are small, fast reproducing organisms that rapidly spread over large areas. Tactics used to mitigate their potential spread include using traps, reward incentives, and repurposing their use for consumption purposes. Trapping and reward incentives have proven useful solutions in island nations and small land areas, but larger invasions are harder to mitigate adequately. An interesting tactic for combating the invasive lionfish is developing a productive fishery for their commercial use as a product in restaurants and consumption. 

Lionfish are reef fish native to the Indo-Pacific ocean characterized by colorful red and white striped bodies, featherlike fins, and venomous spines. The species is incredibly damaging to the Caribbean ecosystems because they are incredibly aggressive predatory fish that prey on anything they can catch. Without natural predators outside their native habitat, they have been able to dominate the top of the food chain quickly. Lionfish are a particularly popular aquarium fish with a large market in the United States. 

The behavior of the lionfish in the Atlantic changed with their new habitat, and they act more aggressively than their counterparts in the Indo-Pacific. They are responsible for massive tolls on reef species like grouper and snapper. They can spawn every four days and release eggs that travel through the Caribbean currents. Atlantic populations are estimated to be up to 1,000 individuals per 1 acre at their highest densities, changing management goals. 

Dealing with lionfish can be difficult due to venomous spines that require medical attention. Divers must use extreme caution to avoid stings and use protective gear and fishing poles to collect lionfish. Tactics for removal from local waters have resulted in some success. Rapid repopulation of the fish incited a new management avenue to convert the species into a fishery commodity for restaurants to market as a local delicacy. 

Fishermen first realized you could eat the lionfish during culling events in south Florida, and they were delicious too. Modifying management efforts into a sustainable fishery means creating employment opportunities for small-scale fishermen, volunteer culling opportunities, fishing competitions, and a constant resource for consumer lionfish products. This method of invasive management is slowly gaining traction in the southeastern United States, and maybe one day, you will get to taste your very own lionfish.