Paustenbach and Associates Acquired by TRC

PFAS in Bandages

Perfluoroalkyl substances (PFAS), including Perfluorooctanoic acid (PFOA), are a family of human-made chemicals developed in the 1940s that are ubiquitous in the environment.

Microplastics: Current and Future Trends

Microplastics are the breakdown product of various polymers including the deterioration of plastic bottles, containers, and many other consumer products.

Kratom: "A New Litigation"

Over the past 18 months, there have been as many as 40 lawsuits file over alleged harm done by a natural herbal (Kratom) which is currently sold at vape shops across the United States.

Lessons Learned From 20 Years Of Study Of the Dioxins: Can It Help Inform EPA In Setting An MCL for PFOS/PFOA?

On January 22, Dr. Paustenbach, President of Paustenbach and Associates, received the Shubik award from the Toxicology Forum at the Forum’s annual meeting in Washington, DC. It is a lifetime achievement award given to those who have contributed significantly to the field of toxicology and risk assessment.

California Set to Ban Prominent Food Additives

In September 2023, the California Senate and Assembly passed assembly bill (AB) 418, also known as the California Food Safety Act, which banned the use of brominated vegetable oil, potassium bromate, propylparaben, and FD&C red no. 3 (California Legislature 2023) .

Recent News on PFOA/PFOS in Drinking Water (December 2023)

Substantial amounts of new information on PFOA and PFOS, including scientific insights and potential regulatory schemes, were released between October and December 2023.

ARA Workshop XIV highlights PFAS Limits: How Did We Get So Far Apart What’s at stake with the proposed EPA Ruling?

The not-for-profit groups Toxicology Excellence for Risk Assessment (TERA) and the International Society of Regulatory Toxicology and Pharmacology (ISRTP) presented a three-day workshop titled PFAS Limits: How Did We Get So Far Apart?

Aspartame Classified as a Carcinogen… what does it mean?

Aspartame is a synthetic dipeptide artificial sweetener commonly used in food and beverage products. It is 180-200 times sweeter than sucrose and is widely used as a healthy replacement for sugar in soft drinks, confectionery, and medicine (Czarnecka et al. 2021). Aspartame was discovered in 1965 and was first regulated by FDA as a food additive in 1974; aspartame was recognized as a general-purpose sweetener in 1996 (Food and Drug Administration (FDA) 2023).

East Palestine Train Derailment: Risk Assessments are Needed

On February 3, 2023, a Norfolk Southern train carrying over 100,000 gallons of various chemicals derailed in the town of East Palestine, Ohio. This resulted in a rapid response as a number of organizations acted to ensure the health and safety of the local residents.

Ethylene oxide: A new wave of litigation

Ethylene oxide (EtO) is a naturally-occurring, gaseous chemical that is synthesized primarily for use in the production of ethylene glycol for anti-freeze and polyester (Agency for Toxic Substances and Disease Registry (ATSDR) 1999).

Judges’ Rulings for Nitrosamines in Pharmaceuticals: Favorable Verdicts for the Defense

Currently, there is scientific debate regarding the carcinogenic potential of human exposure to nitrosamines in pharmaceuticals, and what nitrosamine concentrations constitute a virtually safe dose.

Radiological risk assessment of the Hunters Point Naval Shipyard (HPNS)

Hunters Point Naval Shipyard in San Francisco, California was deemed a Superfund site by the USEPA in 1989 due to chemical and radiological contamination resulting from U.S. Navy operations from 1939 to 1974.

Study Reports Association Between Hair Straightener Use and Uterine Cancer: A Risk Assessment is Needed

A recent epidemiological study published in the Journal of the National Cancer Institute reported an increased risk of uterine cancer among women who used chemical hair straighteners and related products (e.g., dyes, bleach).

Aurobindo Pharma Voluntarily Recalls Two Lots of Tablets Due to Detection of N-Nitroso Impurity

On October 24, 2022, Aurobindo Pharma USA, Inc. voluntarily recalled two lots of Quinapril and Hydrochlorothiazide Tablets from the U.S. market due to presence the of nitrosamine, N-Nitroso-Quinapril

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Paustenbach and Associates is a scientific consulting firm, specializing in exposure science, toxicology, industrial hygiene, epidemiology, radionuclides, and the application of regulatory and scientific approaches to quantitatively characterize the hazards posed by chemicals.

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Our staff has over 40 years of experience in the areas of risk assessment, environmental engineering, ecotoxicology, and occupational health.

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Recent News

PFAS in Bandages

July 18, 2024

PFAS in Bandages Summary Perfluoroalkyl substances (PFAS), including Perfluorooctanoic acid (PFOA), are a family of human-made chemicals developed in the 1940s that are ubiquitous in

Microplastics in Plastic Bottles

Microplastics: Current and Future Trends

July 18, 2024

Microplastics: Current and Future Trends Summary Microplastics are the breakdown product of various polymers including the deterioration of plastic bottles, containers, and many other consumer

Kratom: A New Litigation

July 18, 2024

Kratom: “A New Litigation” Summary Over the past 18 months, there have been as many as 40 lawsuits file over alleged harm done by a

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