Breaking News
October 15, 2018 - Research reveals how the inner ear processes speech
October 15, 2018 - Many parents still skeptical about safety and effectiveness of flu shot, survey finds
October 15, 2018 - Payer Policies May Discourage Non-Pharma Tx for Low Back Pain
October 15, 2018 - Exercise may delay cognitive decline in people with rare Alzheimer’s disease
October 15, 2018 - Researchers modify CRISPR to reorganize genome | News Center
October 15, 2018 - Innovative brain tumor operation set to tailor to patients’ needs
October 15, 2018 - Findings offer new insight into early changes that occur during AD pathology
October 15, 2018 - Neurons regulating reproductive hormone release have different activity in epileptic mice
October 15, 2018 - More parents are concerned about taking babies swimming in public pools
October 15, 2018 - Health Tip: Know the Risk Factors for Lower Back Pain
October 15, 2018 - Study shows cigarillo flavors enhanced by high-intensity sweeteners
October 15, 2018 - Study traces hospital-acquired bloodstream infections to patients’ own bodies | News Center
October 15, 2018 - Abnormal vision in childhood can affect development of brain areas responsible for attention
October 15, 2018 - Color-changing contact lens could help doctors to monitor eye disease medications
October 15, 2018 - Tobacco heating products cause less staining to teeth than conventional cigarettes
October 15, 2018 - Young adults who are obese can expect to lose up to 10 years in life expectancy
October 15, 2018 - Scientists uncover how proteins meet on the cell membrane
October 15, 2018 - Affordable housing with supportive social services for senior citizens can reduce hospital use
October 15, 2018 - The latest ECG device from Schiller
October 15, 2018 - Following a Tissue Sample
October 15, 2018 - Prisoners need drug and alcohol treatments but AA programs aren’t the answer
October 15, 2018 - Andrea Califano and Jordan Orange Elected to National Academy of Medicine
October 15, 2018 - The impending risk of African Swine Fever Virus
October 15, 2018 - Breastfeeding reduces the number of antibiotic-resistant bacteria in infant gut
October 15, 2018 - Researchers develop comprehensive molecular atlas of postnatal mouse heart development
October 15, 2018 - ObsEva SA Presents Clinical Data from Phase III IMPLANT 2 Trial of Nolasiban in IVF at the American Society of Reproductive Medicine (ASRM) Annual Meeting
October 15, 2018 - Engineering teratoma-derived fibroblasts to enhance osteogenesis
October 15, 2018 - Lab study shows effectiveness of potential therapy for treatment-resistant hypothyroidism
October 15, 2018 - JCU study firms up association between diet and depression
October 15, 2018 - Researchers to study the use of CRISPR on human liver on-a-chip platform
October 15, 2018 - Sub-concussive impacts not associated with decline in neurocognitive function
October 15, 2018 - Researchers find potential treatment to halt premature labor and birth
October 15, 2018 - As U.S. suicides rates rise, Hispanics show relative immunity
October 15, 2018 - FDA Issues a Complete Response Letter to Acacia Pharma for Barhemsys
October 15, 2018 - Photoactive bacteria bait may help in fight against MRSA infections
October 15, 2018 - Increasing vigorous exercise reduces risk factors of type 2 diabetes, cardiovascular disease in children
October 15, 2018 - First-of-its-kind study to test a personalized vaccine in cancer patient
October 15, 2018 - Extension trial assesses benefit of switching from flash monitoring to RT-CGM for hypoglycemia
October 15, 2018 - Half of parents say young children are afraid of doctor’s visits
October 15, 2018 - Study shows how fingerprint-based drug screening works on the living and deceased
October 15, 2018 - Study reveals potential to monitor progression of Alzheimer’s disease by measuring brain antioxidant levels
October 15, 2018 - FDA Approves Xarelto to Reduce the Risk of Major Cardiovascular Events in Patients with Chronic Coronary Artery Disease (CAD) or Peripheral Artery Disease (PAD)
October 15, 2018 - Promising new therapeutic approach against Ebola virus identified
October 15, 2018 - Study unravels how cancer stem cells use normal genes in abnormal ways
October 15, 2018 - Healthcare systems fail to deliver at affordable prices finds report
October 15, 2018 - Intensive BP Therapy in Diabetes May Lower Risk for CV Events
October 15, 2018 - Muscle relaxants increase risk of respiratory complications
October 15, 2018 - Female birds become more promiscuous after hatchings fail in the first breeding attempt
October 15, 2018 - Humans occupied Madagascar thousands of years later than previously thought
October 15, 2018 - Is Kidney Dialysis Always Needed When Septic Shock Strikes?
October 15, 2018 - Study shows invasive lung cancer surgery can lead to long-term opioid use
October 15, 2018 - Sugar, a “sweet” tool to understand brain injuries
October 14, 2018 - King’s commemorates activities and research on World Arthritis Day
October 14, 2018 - Humana and VFW NY team up on Stop 22 initiative to increase awareness of veterans committing suicide
October 14, 2018 - Water fluoridation contributes to urinary fluoride levels in pregnant women in Canada
October 14, 2018 - Study of children in Romanian orphanages tells cautionary tale about family separation
October 14, 2018 - Previous Endologix AFX Safety Notice classified by FDA as Class I recall
October 14, 2018 - Legal scholars sound alarm on academies’ report about returning research results to participants
October 14, 2018 - UNIST selects six extraordinary scholars to be induced as ‘Rising-star Distinguished Professor’
October 14, 2018 - Scientists find new way to help asthmatics breathe more easily
October 14, 2018 - New ‘gag rule’ may adversely impact health care of pregnant women
October 14, 2018 - Rosacea – Genetics Home Reference
October 14, 2018 - When the fighting crosses the line
October 14, 2018 - New findings could benefit patients with triple-negative breast cancer
October 14, 2018 - UK Biobank provides wealth of information for further genetic studies
October 14, 2018 - KHN’s ‘What the Health?’ Falling premiums and rising political tensions
October 14, 2018 - Duvelisib Promising for Chronic Lymphocytic Leukemia, SLL
October 14, 2018 - Tailored drug cocktails offer hope to kids with aggressive brain tumors
October 14, 2018 - Common gene variants linked to migraine risk in African-American children
October 14, 2018 - Funding requests are being accepted by BlueCross BlueShield of Tennessee Community Trust
October 14, 2018 - Using pulsed electric fields in cancer therapy
October 14, 2018 - Major Childbirth Complications More Likely for Black Women
October 14, 2018 - Young cancer survivors at greater risk of mental health disorders
October 14, 2018 - Common herbicide compound could help fight hospital-acquired fungal infections
October 14, 2018 - Alterations in genes encoding proteins contribute to ADHD development
October 14, 2018 - New patient-centric website launched in Europe to empower people with chronic conditions
October 14, 2018 - Antimicrobial signaling molecule has lower activity against hepatitis C virus in most humans
October 14, 2018 - Genomic dark matter activity connects Parkinson’s and psychiatric diseases
October 14, 2018 - Cornell dots equipped with antibody fragments offer a new cancer weapon
October 14, 2018 - Addressing social and cultural factors is key to reducing burden of type 2 diabetes
Emissions from gas stations found to be higher than previously thought

Emissions from gas stations found to be higher than previously thought

image_pdfDownload PDFimage_print

A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gas station vent pipes, finding emissions were 10 times higher than estimates used in setback regulations used to determine how close schools, playgrounds, and parks can be situated to the facilities. Findings appear in the journal Science of the Total Environment.

Gasoline vapors contain a number of toxic chemicals, notably benzene, a carcinogen.

The researchers attached gas flow meters to venting pipes at two large gas stations in the Midwest and Northwest and took measurements over a three-week period. They report average daily evaporative losses of 7 and 3 gallons of liquid gasoline, respectively, or 1.4 pounds and 1.7 pounds per 1,000 gallons dispensed at the pump. By comparison, the California Air Pollution Control Officers Association (CAPCOA) used an estimate of 0.11 pounds per 1,000 gallons. Based on CAPCOA emission estimates, the California Air Resources Board (CARB) determined their setback regulation of 300 feet (91 meters) from large gas stations. Similar laws exist in many, but not all states and localities. In urban areas like New York City, some gas stations are located directly adjacent to apartment buildings.

The study also simulated how the fuel vapor was carried in the air to assess the potential for short- and medium-term benzene exposures, comparing their measurements to three established thresholds. The California Office of Environmental Health Hazard Assessment one-hour Reference Exposure Level (REL) for benzene–defined as a continuous hour of exposure to the chemical–was exceeded at both gas stations at distances greater than 50 meters. At the Midwest gas station, REL was exceeded on two different days at distances greater than 50 meters, and once as far as 160 meters. The Agency for Toxic Substances and Disease Registry’s Minimal Risk Level (MRL) for benzene exposure over a period between two weeks and a year was exceeded within 7 or 8 meters of the two gas stations. A less stringent measure used for short-term exposures of first responders, the American Industrial Hygiene Association’s Emergency Response Planning Guidelines (ERPG), was not exceeded.

“We found evidence that much more benzene is released by gas stations than previously thought. In addition, even during a relatively short study period, we saw a number of instances in which people could be exposed to the chemical at locations beyond the setback distance of 300 feet,” said first author Markus Hilpert, PhD, associate professor of Environmental Health Sciences at the Columbia Mailman School. “Officials should reconsider their regulations based on these data with particular attention to the possibility of short spikes in emissions resulting from regular operations or improper procedures related to fuel deliveries and the use of pollution prevention technology.”

In previous work, Hilpert and colleagues documented the release of gasoline as fuel is stored and transferred between tanker trucks, storage tanks, and vehicle tanks, and how these spills can contaminate the surrounding environment. Next, the researchers will explore additional short-term measures of vapor spread to determine the bounds of safe setbacks.

Source:

https://www.mailman.columbia.edu/public-health-now/news/gas-stations-vent-far-more-toxic-fumes-previously-thought

Tagged with:

About author

Related Articles