3 hidden health hazards doctors face at work
Industry Buzz
“Legionella is the big killer... The litigation risk is massive. We’re telling clients this could dwarf asbestos lawsuits because hospitals are perfect targets: vulnerable patients, documented exposure, and clear liability chains.” — Steven Rosas, President of Omega Environmental
"Current PPE standards completely ignore chemical composition transparency. Most procurement contracts lack requirements for manufacturers to disclose PFAS or other persistent chemicals. Healthcare workers may unknowingly face PFAS exposure through protective textiles." — Dr. Giuseppe Aragona, a retired UK-based general practitioner
Hospitals are designed for care but carry quiet, systemic risks. Over the past year, multiple safety failures have emerged due to preventable lapses in environmental controls, maintenance protocols, and occupational protections.
With a recent cluster of brain tumors identified among at least seven current or former staff in the maternity unit at Newton‑Wellesley Hospital, concerns about workplace-related illnesses are resurfacing.
Let's examine hospital safety red flags and how to mitigate them.
Related: 7 hospital employees diagnosed with brain tumors: What's behind this baffling pattern?Dangerous contaminants in hospital plumbing
In June 2025, MyMichigan Medical Center detected Legionella bacteria after a patient was diagnosed with Legionnaires’ disease.[] Similar events occurred at the University of Washington Medical Center[] and a Connecticut long-term care facility,[] highlighting a persistent environmental safety blind spot: water infrastructure. Aging plumbing systems often lack comprehensive water management plans, regular testing, and clear accountability.
Dr. Giuseppe Aragona, a retired UK-based general practitioner, notes, "Most facilities limit surveillance to quarterly or annual sampling, which completely misses intermittent spikes in contamination that could prove deadly. Many hospitals only intensify testing after someone develops Legionnaires' disease."
“We’ve responded to multiple Legionella outbreaks where hospitals had to shut down entire wings because they ignored water system maintenance during low-occupancy periods,” says Steven Rosas, President of Omega Environmental. “One facility had biofilm buildup so severe in their cooling towers that it took weeks of specialized disinfection to make it safe again,” he adds.
“Legionella is the big killer,” Rosas warns. “The litigation risk is massive. We’re telling clients this could dwarf asbestos lawsuits because hospitals are perfect targets: vulnerable patients, documented exposure, and clear liability chains.”
Exposure to chemical agents
Hospital workers regularly encounter irritant cleaning agents and sterilizing chemicals like glutaraldehyde and phenol. Chronic low-level exposure occurs due to inadequate ventilation or improper handling.
According to Dr. Aragona, many dangers may be overlooked, including "biofilm contamination on reusable equipment, antibiotic-resistant pathogens in infrastructure like drains, and indoor air chemistry creating toxic byproducts."
Another hazard is the presence of PFAS (per- and polyfluoroalkyl substances), persistent chemicals used in surgical gowns and sterilization wrappers.
A recent occupational biomonitoring study from the University of Arizona found healthcare workers had measurable serum levels of several PFAS variants, including PFHpS and PFUnA.[]
While these levels were not the highest among the essential workers studied, they were consistently elevated compared to the general population.
PFAS exposure is associated with immune modulation, hormonal disruption, altered cholesterol metabolism, and an increased risk of several cancers.[] In healthcare settings, the source may not be obvious: It could be the coating on a surgical tray, the laminate on a work surface, or the very gown a surgeon wears. Because PFAS do not degrade easily, they accumulate both in the environment and in people.
Dr. Aragona highlights, "Current PPE standards completely ignore chemical composition transparency. Most procurement contracts lack requirements for manufacturers to disclose PFAS or other persistent chemicals. Healthcare workers may unknowingly face PFAS exposure through protective textiles."
Hospitals have yet to fully acknowledge or address their contribution to staff exposure, and current procurement standards do not require chemical disclosure for PPE and consumables.
Radiation exposure and equipment failures
Radiation safety is another domain where recent events suggest procedural gaps. In one case in Washington state,[] workers in Prosser for Palouse Ranches company, which receives recycled metal piping, sought emergency evaluation at a hospital after suspected radiation exposure. The company is located near a contaminated nuclear site. Although their exposure was later determined not to be related to low-level radiation detected in the piping, the hospital initiated a thorough hazmat response at the hospital.
In another instance, regulatory inspections found that a diagnostic imaging provider in the UK had allowed staff to exceed annual exposure limits due to poor supervision and training deficiencies.[]
Dr. Aragona notes, “Subclinical radiation exposure remains problematic. Badge failures or misplacement leave operators unaware of cumulative low-dose exposures linked to cataracts and increased cancer risk.”
While most radiology departments maintain strict protocols, consistency across systems remains variable. Inadequate dosimetry, poor maintenance of shielding equipment, and inconsistent staff education create opportunities for low-dose exposures to go unnoticed.
For clinicians, especially those performing interventional procedures, radiation vigilance must be active and institutional, not assumed.