Understanding PFAS: A Look at the Awareness and Impact on U.S. Drinking Water

Water poured into a clear glass.
Water poured into a clear glass.

The presence of per- and polyfluoroalkyl substances (PFAS) in U.S. drinking water has emerged as a critical environmental and public health issue. Despite increasing media coverage and governmental attention, a significant gap exists in the general public’s understanding of PFAS. An exploratory study by Texas A&M AgriLife scientists and published in PLoS ONE, aimed to bridge this gap by assessing public awareness regarding PFAS and their potential impact on community health and drinking water.

Key Findings of the Nationwide Survey

  • Limited Public Awareness: Alarmingly, nearly half of the respondents (45.1%) were unfamiliar with PFAS. Additionally, 31.6% had heard of PFAS but lacked an understanding of what it entails.
     
  • Perception of Drinking Water Safety: A striking 97.4% did not believe their drinking water was affected by PFAS, indicating a disconnect between public perception and environmental realities.
     
  • Community Exposure as a Predictor: Awareness due to known community exposure emerged as the strongest predictor of PFAS awareness. Those aware of community exposure were more informed about PFAS sources and likely to change their product usage habits.

PFAS: An Overview

PFAS, often termed “forever chemicals” due to their persistence in the environment and in our bodies, are resistant to water, grease, and heat and found in a range of everyday products including food packaging, clothing, cosmetics, and toilet paper. PFAS have been widely used in various industrial processes and consumer products since the 1940s. Their presence in products ranging from non-stick cookware to fire extinguishing foams raises significant environmental concerns, particularly in water sources. The resistance of PFAS to degradation leads to bioaccumulation, posing serious health risks such as cancer, hormone disruption, liver damage, weakened immune systems, and reproductive harm.

Regulatory Response and Public Health Implications

The U.S. Environmental Protection Agency (EPA) has recently proposed stricter regulations to limit PFAS in drinking water, reducing the maximum contaminant levels from 70 parts per trillion (ppt) to 4 ppt. This move, coupled with significant financial settlements from major corporations for PFAS clean-up, highlights the urgency of addressing PFAS contamination. However, the public’s limited awareness and understanding hinder effective response and mitigation efforts.

The Gap in Public Perception and Knowledge

The importance of knowing about PFAS lies in the need to understand the potential health risks associated with exposure to these substances. The general public’s awareness and knowledge of PFAS have been found to be limited, with only about half of the respondents in a nationwide survey stating they were aware of PFAS as an environmental contaminant. This study underscores a critical gap in public awareness and understanding of PFAS. This lack of awareness extends to the potential contamination of their primary drinking water sources.

Community exposure was identified as the strongest predicting factor regarding the level of public knowledge and awareness of PFAS and its sources. Therefore, it is crucial to provide accurate, real-time data on PFAS exposure to empower consumers to make informed decisions and take necessary precautions. Additionally, clear labeling of PFAS products is essential to allow consumers to be aware of their exposure frequency and make adjustments in product use as desired.

The Role of Effective Communication

Government agencies, research organizations, universities, utilities, and scientific institutions must collaborate to provide clear, accessible, and actionable information about PFAS, their sources, and health implications. This effort should aim to make the information relevant and understandable to the general public, encouraging informed decision-making and behavioral changes to reduce PFAS exposure. Manufacturers should clearly label their products with the presence of PFAS. This transparency allows consumers to be aware of their exposure frequency and make adjustments in product use. Consumers may want to install point-of-use treatment devices, such as under-sink or countertop filters, in their homes to remove PFAS from drinking water. These devices often use activated carbon or reverse osmosis technology to effectively reduce PFAS levels.


Source: Berthold TA, McCrary A, deVilleneuve S, Schramm M (2023) Let’s talk about PFAS: Inconsistent public awareness about PFAS and its sources in the United States. PLoS ONE 18(11): e0294134.

UN goal of ending hunger by 2030 risks failure as global food crisis worsens

The ‘three sisters’ are staple foods for many Native American tribes. Marilyn Angel Wynn/Getty Images
The ‘three sisters’ are staple foods for many Native American tribes. Marilyn Angel Wynn/Getty Images

Pandemic and war in Ukraine have pushed 122 million more people into hunger since 2019, according to new report.

By David Henry, Forests News

The number of people facing hunger in the world has risen by more than 122 million since 2019 as a result of the coronavirus pandemic, the war in Ukraine and weather shocks, according to a new United Nations report.

It is estimated that 691 million to 783 million people lacked sufficient food in 2022, affecting 9.2% of the global population compared with 7.9% in 2019, the year before the pandemic began, according to the State of Food Security and Nutrition in the World (SOFI) 2023 report, which is produced by five UN agencies.

The Food and Agriculture Organization of the United Nations (FAO), the International Fund for Agricultural Development (IFAD), the United Nations Children’s Fund (UNICEF), the World Health Organization (WHO) and the World Food Programme (WFP) provide an annual update on the world’s progress towards ending hunger, achieving food security and improving nutrition.

The 2023 report emphasized that the UN Sustainable Development Goal of creating a world free of hunger by 2030 risks failure if current trends continue. It is projected that almost 600 million people will be chronically undernourished at the end of the decade.

“The latest SOFI report highlights the urgent need to reverse the trends that undermine the world’s ability to achieve the goal of zero hunger by 2030,” says Éliane Ubalijoro, Chief Executive Officer of the Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF). “Trees, forests and agroforestry landscapes have a vital role to play in this process by helping address the interrelated challenges of biodiversity loss, climate change, food security, livelihoods and inequity.”

To help transform food systems, CIFOR-ICRAF is promoting the wide-scale adoption of agroecological approaches, including farmer-led strategies to increase tree cover and diversity across agricultural landscapes. And by providing evidence on how forests and trees contribute to people’s diets, it is raising awareness and influencing national policies to include forests and trees as part of national and local food systems.

‘’The SOFI 2023 report shows that in a world where regular crises become the new norm, increasing the resilience of agrifood systems is a priority,” says David Laborde, Director of the FAO Agrifood Economics Division (ESA). “Forestry has a key role to play in this system. The range of actions and opportunities is vast: from helping the regulation of water flows and mitigating the severity of heatwaves, to providing income diversification options and more robust integrated production systems.’’

While global hunger stabilized in 2022 alone, it continued to increase in some vulnerable countries, in particular in Africa. Seizing the opportunity provided by forests, either by rebuilding them in the Sahel region, or preserving their services in Central and Eastern Africa is part of reversing the hunger trend in these countries, Laborde says.

As it addresses five global challenges, CIFOR-ICRAF is committed to transforming food systems that are based on sustainable land management, equitable outcomes for Indigenous Peoples and local communities, as well as supply chains that rely on sound environmental practices and social inclusion.

Trees can make a major contribution to boosting the productivity of farming systems and the lives of rural communities, who provide most of the world’s food. CIFOR-ICRAF facilitates this process by helping farmers choose the right tree for the right place for the right purpose on their farms and then to manage them effectively.

Agroecology enables farmers to grow food while preserving soil health and improving the resilience of food systems,” says Fergus Sinclair, Chief Scientist at CIFOR-ICRAF. “The world produces enough food to feed nearly twice the current population, yet millions of people are still hungry. A greater emphasis on agroecology, including reducing food loss and waste, would help policymakers tackle this worsening global food crisis.”

The 2023 SOFI report highlighted that agroecology has a role to play in ending hunger by the end of the decade while offering other benefits. At plot, farm and landscape scales, it can help increase farmers’ incomes, improve food security and nutrition, use water more efficiently and enhance nutrient recycling, as well as conserve biodiversity and provide other ecosystem services.

Agrifood systems will also need to be viewed beyond the traditional rural-urban divide, according to the UN agencies. Due to population growth, small and intermediate cities and rural towns are increasingly bridging the space between rural areas and large metropolises, creating both challenges and opportunities to ensure everyone has access to affordable healthy diets.

Join the global movement: Combat plastic pollution this World Environment Day, June 5th

Theme:Finding solutions to plastic pollution
Date:June 5th, 2023
Host:Côte d’Ivoire in collaboration with the Netherlands
Hashtags:#BeatPlasticPollution and #WorldEnvironmentDay

June 5th, 2023, will mark the 50th anniversary of World Environment Day, which was established by the United Nations Environment Programme (UNEP) in 1973. This year, the event is anticipated to attract tens of millions of participants both online and through in-person activities, embodying the spirit of environmental advocacy.

Addressing plastic pollution

This year’s theme is focused on finding solutions to plastic pollution. The occasion underscores the consequences of actions and inaction taken by individuals, businesses, and governments in response to plastic pollution. It also highlights the pressing need to amplify these efforts and transition towards a circular economy. To assist in these efforts, a Beat Plastic Pollution Practical Guide is available, outlining steps to halt and reverse the detrimental effects of plastic pollution.

An urgent need

Our planet is in crisis, besieged by the overwhelming weight of plastic waste. Despite its numerous applications, plastic has become detrimental due to our dependence on single-use plastic products, which cause significant environmental and health issues.

As per the UN, globally, one million plastic bottles are bought every minute, up to five trillion plastic bags are used each year, and 400 million tonnes of plastic waste are produced annually. Approximately 36% of all plastic is used for packaging, including single-use items for food and beverage containers. Sadly, around 85% of these items end up in landfills or as unregulated waste. Less than 10% of the seven billion tonnes of plastic waste generated worldwide has been recycled. The most prevalent types of plastic waste found in the environment include cigarette butts, food wrappers, plastic bottles and caps, grocery bags, straws, and stirrers.

Environmental harm

Plastic waste can persist in the environment for centuries due to its durability and resistance to degradation. Nearly all single-use plastic products are manufactured from fossil fuels, contributing to the escalation of greenhouse gas emissions. Most plastic items merely break down into smaller microplastics, which can infiltrate the human body and accumulate in various organs. The impact of this phenomenon on human health remains largely unknown. Microplastics are now ubiquitous and are a part of the Earth’s fossil record. They have even led to the creation of a new marine microbial habitat, known as the “plastisphere.”

How you can help

Urge your local and national leaders to take decisive action by eliminating problematic plastic packaging, redesigning products for sustainability, and promoting transparency in sustainability information. Additionally, you can participate in beach or river clean-ups, shop sustainably, adopt a zero-waste lifestyle, advocate for change, choose sustainable fashion, and opt for plastic-free personal care products.

Spread awareness and inspire others via social media using the hashtags #BeatPlasticPollution and #WorldEnvironmentDay.