Chemical hazards

Braiding hair extensions are widely used consumer beauty products often worn forextended periods and handled frequently during installation and daily styling. Use isparticularly widespread among Black women and girls, which promotes the

This report provides a critical analysis of my internship experience, integrating an in-depth exploration oforganizational practices with current literature to evaluate methods, identifying best practices, andpropose actionable recommendations that advance professional standards. I worked with the Health,

Per- and polyfluoroalkyl substances (PFAS) are a class of ubiquitous and persistentorganic pollutants that are used in a wide variety of applications such as in foodpackaging, waterproof materials, and personal care products. It is estimated that 97% ofpeople living in the United States have measurable concentrations of PFAS in their blood.1

Starting July 8th, 2024, the Environmental Protection Agency (EPA) implemented a finalruling to mitigate the unreasonable risk of injury associated with methylene chloride throughseveral key measures. The aerospace industry, which utilizes this chemical for various processes,has been granted conditional allowed uses. Among the 13 permitted uses, one includes the

A proper chemical management system is a crucial aspect of maintaining workers safe in themilitary aircraft manufacturing industry. As technology develops and new research is found,manufacturing processes must be updated as well. This includes reducing exposure byeliminating any hazards that workers may be unnecessarily exposed to. When incidents do occur,

Tattoos have a rich history as an expressive form of body modification and cultural symbolism, with 

In June 2022, the International Agency for Research on Cancer (IARC) classified firefighting as a carcinogenic occupation due to strong evidence linking it to increased cancer in humans, with exposure to polycyclic aromatic hydrocarbons (PAHs) identified as a likely contributor.

6PPD (N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine) is a chemical widely used as anantidegradant in vehicle tires. 6PPD reacts with ozone in the air and produces 6PPD-Quinone(6PPDQ), a chemical that has been classified by the U.S. Environmental Protection Agency asvery highly toxic to aquatic organisms along with adverse implications to terrestrial ecosystems

Gloves that significantly reduce the sense of touch, inhibit hand movement, and lack liquid protection canreduce workers' capabilities and create barriers to using protective equipment properly. Protective glovesunsuitable for the assigned task may be discarded, increasing the potential for skin exposure to chemical

Polychlorinated Biphenyls (PCBs) are persistent environmental contaminants that pose a significant public health risk including reproductive toxicity partly because they are endocrine disruptors. The lipophilic nature of PCBs increases the risk of developmental exposure due to placenta and breast milk transfer.

Anthropogenic impacts on marine ecosystems have developed into a dominating and formative force within coastal regions. One of the strongest influences within these coastal anthropogenic zones is the deposition and life cycle of marine plastic waste.

The use of chemical agents to eradicate pests and weeds is prevalent across both developing and developed countries, and it plays a crucial role in the agricultural sector by enhancing crop yields and minimizing losses.

Background: Asthma is a leading cause of childhood morbidity in the U.S. and a significant public health concern. The prenatal period is a critical window during which environmental influences, including maternal occupational exposures, can shape child respiratory health.

Background and Objectives: Dermal exposures to polycyclic aromatic hydrocarbons (PAHs) are a likely pathway explaining elevated cancer risk in firefighters.

The school environment is one of the primary locations where children spend time and is known to present numerous health hazards. Poor air quality is a known public health risk, especially for children, impacting health, attendance, and learning outcomes, but schools face many challenges in improving the school environment.

Exposure to per-and poly-fluorinated substances is increasingly in the public eye. The National Academy of Sciences, Engineering and Medicine released a report advising increase surveillance screening for those exposed to high levels.

Commensal rodents are a widespread problem in densely populated cities, where they live in close proximity to humans. These rodents can transmit numerous diseases to humans and domestic animals and are a threat to public health.

Organophosphate (OP) pesticides are extensively used to support agricultural practices in Washington State. OP exposure is associated with both asthmatic populations and agricultural communities. The objective of this thesis is to investigate the correlation between OP pesticide exposure in agricultural community, with respiratory health outcomes, associated with asthma.

This project involved conducting an exposure assessment in the paint shop at Seattle City Light to evaluate

Background: JP-8, Jet A-1, and Jet A are kerosene-based aviation fuels. Jet fuel combustion produces complex pollutant mixtures including VOCs, CO2, CO, NOx, SOx, PAHs and PM. Particles are characterized by size, with ultrafine particles (UFPs -- those particles < 100 nm in diameter) typically quantified by particle number concentration.

The 2018 Environmental Performance Index (EPI) named air pollution as the number one environmental threat to public health. Traffic-related air pollution (TRAP) is a sizable contributor to global air pollution, and diesel exhaust (DE) is a major source of TRAP (Yale Center for Environmental Law & Policy, 2018).

Background: Ozone is a popular water sterilization agent utilized in marine mammal husbandry to maintain the pool water in the animal enclosures. The health hazards posed by ozone are well understood, but its role as an occupational hazard, especially in marine mammal husbandry, is understudied and not well characterized.