From: "Secretary, ACS Division of Chemical Health and Safety" <secretary**At_Symbol_Here**DCHAS.ORG>
Subject: [DCHAS-L] Chemical Safety headlines from Google (24 articles)
Date: Mon, 18 Jul 2016 07:10:27 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 1417A3B5-8189-41AF-808D-6361838A00F0**At_Symbol_Here**dchas.org


Chemical Safety Headlines From Google
Monday, July 18, 2016 at 7:10:16 AM

A membership benefit of the ACS Division of Chemical Health and Safety
All article summaries and tags are archived at https://urldefense.proofpoint.com/v2/url?u=http-3A__pinboard.in_u-3Adchas&d=DQIFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=meWM1Buqv4IQ27AlK1OJRjcQl09S1Zta6YXKalY_Io0&m=EzqO2E1TH9nLeLEV7hH64WR2blaGcwPh62WSV3C1VPE&s=MVkdSorpbNW1US9B5-R1hJrIaMXdYNnV2fomzZf6v-8&e=

Table of Contents (24 articles)

SAN FRANCISCO EXPANDS POLYSTYRENE BAN
Tags: us_CA, public, discovery, response, other_chemical, illegal

HAZMAT CALLED TO LIBURDI ENGINEERING FOR CHEMICAL SPILL
Tags: Canada, public, release, response, hydrochloric_acid

COLLECTION OF DANGEROUS PAINTS HELPS EXTEND LIFE OF SHORT MOUNTAIN LANDFILL
Tags: us_OR, public, discovery, environmental, paints, waste

SHELTER-IN-PLACE LIFTED AFTER CHEMICAL EMERGENCY IN BAYTOWN
Tags: us_TX, industrial, release, response, flammables

ALCOA FIGHTS CHARGE AFTER CHEMICAL BURN
Tags: Australia, industrial, release, response, unknown_chemical

MAJOR CONGESTION ON M6 AFTER CHEMICAL SPILL
Tags: United_Kingdom, transportation, release, response, sulfuric_acid

REFINERY EXPLOSIONS, CHEMICAL RELEASES PROMPT PROPOSED NEW OIL INDUSTRY REGULATIONS
Tags: us_CA, industrial, follow-up, environmental, other_chemical

U.S. CONGRESS CLEARS THE WAY FOR LIMITS ON DRONE FLIGHTS NEAR CHEMICAL PLANTS AND REFINERIES
Tags: industrial, discovery, environmental

A LOOK AT ONE OF THE MORE DEVASTATING EXPLOSIONS
Tags: us_FL, industrial, follow-up, environmental, other_chemical

THREE HOSPITALIZED, HAZMAT CALLED TO PERRIS APARTMENT AFTER 'EXCESSIVE...
Tags: us_CA, public, release, injury, ag_chems, pesticides

HERBICIDE OVERSPRAY
Tags: us_IA, industrial, release, injury, ag_chems, pesticides

CHEMICAL LEAK LEADS TO EVACUATION OF U-M HEALTH CENTER IN YPSILANTI
Tags: us_MI, public, release, injury, unknown_chemical

FLAGSTAFF FIRE RESPONDS TO HAZMAT SPILL
Tags: us_AZ, transportation, release, response, chlorine

RIVERKEEPER STUDY FINDS CHEMICAL COMPOUNDS IN HUDSON RIVER ESTUARIES BUT SAYS SWIMMING SPOTS GENERALLY SAFE
Tags: us_NY, public, discovery, environmental, pesticides, pharmaceutical, repellent

COUNTY NEWS: MAN SUFFERS BURNS IN ‰??CHEMICAL INCIDENT‰??
Tags: United_Kingdom, industrial, release, injury, corrosives

WIRELESS BADGES SENSE HAZARDOUS CHEMICALS
Tags: us_MA, laboratory, discovery, response, other_chemical

SPENCER LAB FIRE
Tags: us_DE, laboratory, fire, response, unknown_chemical

CHEVRON REFINERY FIRE PROMPTS STATE TO PROPOSE TOUGHER RULES
Tags: us_CA, industrial, follow-up, environmental, other_chemical

EXPLODING FIRE CONSUMES OIL FIELD IN SAN JUAN BASIN; CAUSE UNKNOWN
Tags: us_NM, public, explosion, response, other_chemical

MODERN WORKERS SUFFER CHEMICAL BURNS WHILE COLLECTING GARBAGE IN LEWISTON
Tags: us_NY, transportation, release, injury, waste

HOUSTON SHIP CHANNEL REOPENS AFTER BENZENE SPILL
Tags: us_TX, transportation, release, response, benzene

LASIK SURGERY NEAR BRIDGEPORT VILLAGE EVACUATED
Tags: us_OR, public, release, injury, fluorine

WESTFORD CHEMICAL REACTION PROMPTS HAZMAT RESPONSE
Tags: us_MA, public, release, response, other_chemical

CENTRAL PARK EXPLOSIVE CONTAINED 'UNSTABLE' CHEMICAL: REPORT
Tags: us_NY, public, follow-up, response, bomb


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SAN FRANCISCO EXPANDS POLYSTYRENE BAN
Tags: us_CA, public, discovery, response, other_chemical, illegal

San Francisco recently adopted the broadest ban on polystyrene foam items in the U.S. As of Jan. 1, 2017, a new city ordinance halts sales of meat trays, egg cartons, plates, cups, packing peanuts, coolers, pool toys, and dock floats made of expanded polystyrene foam. The San Francisco Board of Supervisors cited the contribution of polystyrene foam to plastic pollution in waterways, adding that the material cannot be composted and is difficult or impossible to recycle. In recent years, San Francisco and several other large cities across the U.S. have banned carryout food and beverage containers made of the plastic foam.

---------------------------------------------

HAZMAT CALLED TO LIBURDI ENGINEERING FOR CHEMICAL SPILL
Tags: Canada, public, release, response, hydrochloric_acid

No one was injured Saturday after a chemical spill at a Hamilton engineering firm.

Emergency crews, including 16 fire trucks and a HAZMAT crew, were called around 3 p.m. to Liburdi Engineering Ltd. at 400 Hwy. 6 North after reports of a spill.

Fire Information Officer Bob Simpson said the building was evacuated after a hydrochloric acid spill ‰?? which was a small amount in nature.

"It was a very minor spill in terms of quantity," he said. "Once it was safe to get inside we the checked the scope of it."

Simpson said there was no fire at the facility as a result of the spill. The sprinklers in the building, however, were activated.

---------------------------------------------

COLLECTION OF DANGEROUS PAINTS HELPS EXTEND LIFE OF SHORT MOUNTAIN LANDFILL
Tags: us_OR, public, discovery, environmental, paints, waste

On a recent day at Lane County‰??s special-waste center off Glenwood Boulevard in Springfield, cars lined up to drop off cans of old paint and other hazardous materials that homeowners had accumulated over the years.

Helped by the waste center‰??s hazmat-suited staff, drivers unloaded cans onto trolleys, to be wheeled into the collection building for sorting by operators wearing black gloves and eye shields.

As part of its years-long effort to deter people from dumping hazardous waste illegally, Lane County‰??s Waste Management Division each year collects thousands of tons of dangerous paints and other chemicals, mostly through the Glenwood site ‰?? which is open to the public two days a week ‰?? but also through rural roundup events.

In the past 12 months, the county has collected 18 tons of hazardous waste in rural roundups.

This spring‰??s roundups brought in 35,836 pounds of hazardous waste from 506 homes in Oakridge, Florence and Cottage Grove.

---------------------------------------------

SHELTER-IN-PLACE LIFTED AFTER CHEMICAL EMERGENCY IN BAYTOWN
Tags: us_TX, industrial, release, response, flammables

BAYTOWN - Baytown officials issued a shelter-in-place for about an hour Sunday after reports of an ExxonMobil pipeline leak. It has since been lifted.

Authorities said the chemical was heavier than air and non-toxic. However, officials said it was extremely flammable.

Workers are bleeding the lines now to avoid any fire hazards.

At least three houses near the leak were evacuated. It was strongly requested other residents stay inside their homes during the chemical emergency.

---------------------------------------------

ALCOA FIGHTS CHARGE AFTER CHEMICAL BURN
Tags: Australia, industrial, release, response, unknown_chemical

Aluminium giant Alcoa is fighting an allegation it failed to provide a safe working environment after an employee suffered chemical burns in an incident at one of its West Australian refineries.

The process operator sustained serious burns to his left eye and lower body when a caustic solution spilled on him while he undertook routine tasks at the Pinjarra facility in March 2014.

The US-headquartered company pleaded not guilty in the Perth Magistrates Court on Monday and will return to the same court on September 27.

---------------------------------------------

MAJOR CONGESTION ON M6 AFTER CHEMICAL SPILL
Tags: United_Kingdom, transportation, release, response, sulfuric_acid

A lorry has spilled its load of sulphuric acid on the M6 motorway, causing the closure of the southbound stretch at Coleshill and leading to huge delays.

Warwickshire Fire and Rescue Service were called at 5.20am and advised the motorway needed to be closed from Junction 5 to 4A.

A spokesman said: "It is believed at this time that the lorry is carrying 20 containers, each holding 1,440 litres of suphuric acid and that one of these containers has split and is leaking out of the lorry onto the roadway.

"Fire crews confirm that 1,400 litres of sulphuric acid has leaked from this vehicle which is located on the hardshoulder.

---------------------------------------------

REFINERY EXPLOSIONS, CHEMICAL RELEASES PROMPT PROPOSED NEW OIL INDUSTRY REGULATIONS
Tags: us_CA, industrial, follow-up, environmental, other_chemical

A ‰??landmark‰?? set of proposed regulations aimed at improving the safety of communities surrounding oil refineries and workers is intended to make explosions like the one in Torrance last year at the former ExxonMobil plant less likely.

The stricter regulations unveiled by the state Friday were initially prompted by the serious chemical release and fire in 2012 at Chevron‰??s refinery in the Bay Area and reinforced by the February 2015 Torrance blast.

The U.S. Chemical Safety Board, which is investigating the Torrance explosion, has said a catastrophic release of deadly hydrofluoric acid that could have killed and injured tens of thousands was only averted by happenstance in the wake of the explosion.

‰??The essential elements of the proposed amendments would probably have lessened the chance of the ExxonMobil event to occur,‰?? said Paul Penn, point man for California Environmental Protection Agency on the proposal. ‰??The two thrusts on the regulatory side are safety and prevention.

‰??We feel that an investment in safety and prevention will lessen the need for an emergency preparedness response,‰?? he added.

Federal officials have blamed the blast on botched safety reviews, while state investigators said the company‰??s decision to deliberately fail to fix equipment it knew could cause a life-threatening explosion also played a role.

State officials put the estimated lost output from the ExxonMobil blast at $323 million. However, a RAND study estimated motorists paid at least $2.4 billion in higher pump prices in the six months following the blast, while the total economic loss was closer to $14 billion.

---------------------------------------------

U.S. CONGRESS CLEARS THE WAY FOR LIMITS ON DRONE FLIGHTS NEAR CHEMICAL PLANTS AND REFINERIES
Tags: industrial, discovery, environmental

The U.S. Senate gave final congressional approval on July 13 to bipartisan legislation that paves the way for restrictions on the operation of drones near chemical plants, oil refineries, and other ‰??critical infrastructure‰?? facilities.
The legislation would require the Federal Aviation Administration to establish procedures for chemical plants, refineries, as well as energy production, transmission, and distribution facilities to petition the agency to limit or ban operation of unmanned aircraft close to a facility.
The provision is included in a bill (H.R. 636) that authorizes FAA programs at current funding levels through September 2017. The legislation, which the Senate passed by a vote of 90-4 on July 13, now goes to the White House for President Barack Obama‰??s expected signature. The House of Representatives approved the measure on July 11.
Drones, unmanned aircraft flown remotely, have surged in recreational popularity. This raised concerns that a drone could accidentally crash into an industrial facility, hit power lines, or be used by a terrorist to surveil potential targets.

---------------------------------------------

A LOOK AT ONE OF THE MORE DEVASTATING EXPLOSIONS
Tags: us_FL, industrial, follow-up, environmental, other_chemical

JACKSONVILLE ‰?? Charles Bolchoz called the owners of T2 laboratories at 1:23 p.m. on a Wednesday.

The cooling jacket on a 2,450-gallon reactor wasn't working, he told them. The temperature inside was over 360 degrees Fahrenheit and climbing.

T2, a chemical manufacturing company with 12 employees, was co-founded by a chemical engineer and a chemist. That December day in 2007, they were making their 175th batch of a fuel additive known as MCMT.

One of the owners, Mike Wyatt, searched for the plant's mechanic. The other, Scott Gallagher, the engineer, headed for the control room, some 50 feet from the reactor. Someone sounded the "critical alarm," which had only been used in practice drills.

---------------------------------------------

THREE HOSPITALIZED, HAZMAT CALLED TO PERRIS APARTMENT AFTER 'EXCESSIVE...
Tags: us_CA, public, release, injury, ag_chems, pesticides

Perris, CA ‰?? A hazardous materials team was called to a Perris apartment Friday to clear away containers full of pesticides that sickened three people.

The contamination hazard was reported about 1:30 p.m. at the Country Village Apartments in the 200 block of Wilkerson Avenue, just off Interstate 215, according to the Riverside County Fire Department.

An agency spokeswoman said three engine crews were sent to the location to investigate the hazmat risk and discovered "excessive pesticides" packed into the apartment.

Three people suffered apparent exposure-related illnesses and were transported to Riverside University Medical Center for treatment. All were in stable condition, according to the fire department.

---------------------------------------------

HERBICIDE OVERSPRAY
Tags: us_IA, industrial, release, injury, ag_chems, pesticides

Fifteen field workers from Grundy County were injured after accidental exposure to an herbicide spray Thursday afternoon. The individuals were taken to the emergency room of Central Iowa Healthcare in Marshalltown as a safety precaution, where they were decontaminated and evaluated.

In a statement released by the Marshalltown Fire Department, at 4:45 p.m., the department was notified of a hazardous materials incident involving an agricultural crew that was then brought to Central Iowa Healthcare via school bus. Fire crews were told that the workers had been contaminated after a ground sprayer applied herbicide to the area, which was then carried by the wind, harming their faces. Fire crews and Central Iowa Healthcare EMS and hospital staff set up a decontamination tent in the hospital parking lot. After the decontamination process, all workers were examined in the emergency room.

"Any time people come to the ER after coming into contact with a chemical we are not aware of, we always treat it as a HAZMAT situation," said Marshall County Iowa Emergency Management Director Kim Elder. "A shower tent was set up outside the ER where people removed their contaminated clothing and showered."

---------------------------------------------

CHEMICAL LEAK LEADS TO EVACUATION OF U-M HEALTH CENTER IN YPSILANTI
Tags: us_MI, public, release, injury, unknown_chemical

YPSILANTI, MI - Eight people may have been exposed to a caustic chemical at an Ypsilanti University of Michigan health center on Friday, July 15, according to a University of Michigan public safety official.

All eight individuals received medical treatment and observation on scene by Huron Valley Ambulance medical staff, said Diane Brown, public information officer with U-M Public Safety. No one was taken to a hospital.

Brown said the discharge was contained to the building, located at 200 Arnett St., and that there is no threat to public health or safety at this time.

The building was locked down and evacuated Friday afternoon and will remain closed until fire and HAZMAT crews decide if any additional cleanup is necessary, Brown added.

The chemical leak occurred around 2:14 p.m. after an equipment malfunction at one of the three medical offices on site, Brown said. The location includes two medical offices and one laboratory.

---------------------------------------------

FLAGSTAFF FIRE RESPONDS TO HAZMAT SPILL
Tags: us_AZ, transportation, release, response, chlorine

Flagstaff Fire Department found themselves on cleanup duty after an employee at a local business spilled about 25 gallons of an unknown chemical while unloading a truck yesterday afternoon.

A battalion chief, three engines, one quint (a ladder and engine fire truck) and the department‰??s hazardous materials special operations truck arrived at a Armour Self Storage at Industrial Drive and Vickey Street around 1 p.m. to find that a pallet that was being unloaded from as semi-truck had tipped over and spilled a chlorine bleach detergent on the ground.

Two of Flagstaff Fire‰??s Hazardous Materials Technicians donned protective gear and inspected the site while other firefighters started setting up an emergency decontamination site and looking for the safety data sheets to identify the chemicals.


The data sheets were located in the truck and fire and HazMat personnel were able to use a heavy-duty absorbent material to clean up and dispose of the spill.

---------------------------------------------

RIVERKEEPER STUDY FINDS CHEMICAL COMPOUNDS IN HUDSON RIVER ESTUARIES BUT SAYS SWIMMING SPOTS GENERALLY SAFE
Tags: us_NY, public, discovery, environmental, pesticides, pharmaceutical, repellent

KINGSTON >> A study of the microbiology of the Hudson River‰??s estuaries has found a long list of chemical compounds with unpronounceable names but reached the conclusion that popular swimming spots are largely safe.

The study, conducted by Riverkeeper and Cornell University School of Civil and Environmental Engineering, was released Friday. It lists 83 pharmaceutical, pesticide and personal-care products was found in 24 water samples taken at eight locations between June and October of last year.

‰??My research interests are ... trying to understand the influence or interaction between human development and water quality,‰?? study co-author Damian Helbling said. ‰??With respect to that, I focus a lot on chemicals that we use on a daily basis to improve our quality of life. These are chemicals that we use for food production, to generate energy and things that we use at home just to live a sort of modern 21st-century lifestyle.‰??

Compounds that were found in all 24 samples included atenolol, a beta blocker; velafaxine, found in antidepressants; caffeine; sucraloe, an artificial sweetner; methyl benzotriazole, an industrial chemical; and DEET, an insect repellant.

‰??Number one was caffeine,‰?? Helbling said. ‰??Most of us have a cup of coffee. ... Some fraction of that caffeine is going to come out. It‰??s going to be conveyed to a wastewater treatment plant. It (the plant) may or may not do a good job of removing that caffeine, and ultimately it will accumulate in ... surface water.‰??

---------------------------------------------

COUNTY NEWS: MAN SUFFERS BURNS IN ‰??CHEMICAL INCIDENT‰??
Tags: United_Kingdom, industrial, release, injury, corrosives

A man has been rushed to hospital with burns after he came into contact with a corrosive substance yesterday afternoon (July 14).

Three men were cleaning toilets in a building in Marine Court, St Leonards, shortly after 4pm when they spilled five litres of the chemical potassium hydroxide, which is used to clean pipes.


The Kent Air Ambulance on the beach by Marine Court. Picture by Paul Ashton. SUS-160714-175404001
Firefighters hosed one man down before he was taken to the Royal Sussex County Hospital in Brighton by ambulance.

It is not yet known how serious the man‰??s injuries are.

Others on the scene underwent ‰??decontamination procedures‰?? according to East Sussex Fire and Rescue Servic

---------------------------------------------

WIRELESS BADGES SENSE HAZARDOUS CHEMICALS
Tags: us_MA, laboratory, discovery, response, other_chemical

A new wireless hazard badge detects certain dangerous compounds at parts-per-billion levels and warns people of their exposure to these chemicals via smartphone. The inexpensive, battery-free device could find use in chemistry labs and in military settings.
Massachusetts Institute of Technology chemists Timothy M. Swager, Rong Zhu, and Joseph M. Azzarelli developed the device by modifying commercially available near-field communication tags, smart chips that can communicate with cell phones. They added a chemiresistor, made of single-walled carbon nanotubes immersed in an ionic liquid, to the tags (Angew. Chem. Int. Ed. 2016, DOI: 10.1002/anie.201604431).
When electrophilic molecules that are chemical warfare simulants hit the ionic liquid coating the conductive nanotubes, the molecules become hydrolyzed, Swager explains. The associated change in resistance in the tag can be detected via a mobile phone. In tests with the nerve agent simulant diethyl chlorophosphate, the MIT researchers showed they were able to detect various levels of exposure to the chemical‰??from low to moderate to hazardous‰??over time.
‰??Today‰??s cell phones employ more than a dozen sensors for various functions, including detecting light, magnetic field, temperature, acceleration, pressure, and sound waves. But they are all physical sensors,‰?? notes N. J. Tao, director of the Center for Bioelectronics & Biosensors at Arizona State University. ‰??Low-cost and miniaturized chemical sensors, like the one demonstrated by the Swager group, have a huge potential to expand mobile devices beyond tracking of our heart rate or how many steps we walk.‰??

---------------------------------------------

SPENCER LAB FIRE
Tags: us_DE, laboratory, fire, response, unknown_chemical

The University of Delaware's Spencer Laboratory is closed until further notice following a second floor custodial closet fire on Thursday afternoon, July 14.

The building was evacuated safely and then closed, according to UD officials.

The fire was extinguished with minimal damage, officials said, however, there is approximately one inch of water in the vicinity of the fire that must be removed.

Academy Street, which was closed briefly from Delaware Avenue to Lovett Avenue, has reopened to traffic.

---------------------------------------------

CHEVRON REFINERY FIRE PROMPTS STATE TO PROPOSE TOUGHER RULES
Tags: us_CA, industrial, follow-up, environmental, other_chemical

California oil refineries may soon see tighter safety controls under state regulations proposed Thursday, four years after a leaky pipe triggered a fire at Chevron‰??s Richmond plant and sent 15,000 people to the hospital.
The new rules are an effort to make the state‰??s 18 refineries safer for workers and neighboring communities by introducing employee workplace standards and added checks intended to prevent chemical leaks.
The regulations, jointly announced by the California Environmental Protection Agency, the Governor‰??s Office of Emergency Services and the state Department of Industrial Relations, are the work of a group of government, business and community leaders convened after the August 2012 Richmond fire.
The proposed rules will be circulated for at least 45 days before the state agencies move to approve them.
‰??These regulations will make refineries safer neighbors and employers,‰?? CalEPA Secretary Matthew Rodriquez said in a prepared statement.

---------------------------------------------

EXPLODING FIRE CONSUMES OIL FIELD IN SAN JUAN BASIN; CAUSE UNKNOWN
Tags: us_NM, public, explosion, response, other_chemical

A fire that consumed storage tanks at an oil field in New Mexico is slowly burning out, and a WPX Energy spokesperson has apologized to dozens of Navajo Nation citizens who had to evacuate their homes.

‰??We‰??re deeply sorry for the lives interrupted,‰?? said WPX Energy spokesperson Kelly Swan, after 55 homes had to be evacuated. ‰??The Navajo Nation is an important stakeholder.‰??

The fire broke out in a series of explosions on Monday, July 11 at 10:15 pm at WPX Energy‰??s West Lybrook six-well-pad unit, a five-acre oil production site on Highway 550 near Nageezi, New Mexico, in San Juan County.

As of 7:30 a.m. on July 14 the fire, which WPX officials had hoped would burn itself out in a matter of hours, was ongoing, according to San Juan County spokesperson Michele Truby-Tillen.

---------------------------------------------

MODERN WORKERS SUFFER CHEMICAL BURNS WHILE COLLECTING GARBAGE IN LEWISTON
Tags: us_NY, transportation, release, injury, waste

LEWISTON -- Two workers from Modern Disposal suffered apparent chemical burns while picking up garbage Thursday afternoon in Lewiston.

The workers were collecting trash along Lower River Road near Joseph Davis State Park. After placing some trash in the rear of a garbage truck, the workers attempted to compact the debris, according to a Lewiston police official.

As the compacting machinery began to close down on the garbage, it smashed what was described as a "blue bottle" and a liquid sprayed out of the bottle. The workers were hit by the spray and began to feel a burning sensation on their skin.

A Hazmat team from the Niagara Falls Air Reserve Station was called out and washed down the workers and decontaminated them before they were taken to a hospital for treatment.

It was unclear what the workers were sprayed with Thursday night. Attempts to contact the Niagara County Fire Coordinator's office were unsuccessful.

---------------------------------------------

HOUSTON SHIP CHANNEL REOPENS AFTER BENZENE SPILL
Tags: us_TX, transportation, release, response, benzene

HOUSTON - The Houston Ship Channel has reopened after a benzene spill Thursday afternoon.


Coast Guard crews and a Hazmat team from Harris County worked to clean up about 500 gallons of benzene spilled from a tanker.

The leak was secured but a small portion of the benzene entered the water, according to the Coast Guard.

---------------------------------------------

LASIK SURGERY NEAR BRIDGEPORT VILLAGE EVACUATED
Tags: us_OR, public, release, injury, fluorine

TIGARD, Ore. (KOIN) ‰?? An employee at a Lasik eye surgery clinic at Bridgeport Village was exposed to potentially harmful gassed used in Lasik surgery on July 14.

Tualatin Valley Fire & Rescue‰??s HazMat team arrived within minutes of the exposure and treated one person for minor symptoms related to fluorine and helium gas. That person was taken to the hospital with non-life threatening injuries.

The HazMat team evaluated the building to make sure the leak was contained and found no other signs of gas in the building. The confirmed an employee had been able to shut off the valve before evacuating.

---------------------------------------------

WESTFORD CHEMICAL REACTION PROMPTS HAZMAT RESPONSE
Tags: us_MA, public, release, response, other_chemical

WESTFORD -- The Westford Fire Department and state's hazmat team responded to a chemical reaction at 73 Hildreth St. around 1:25 p.m. Thursday.

Officials responded to an accidental mixture of Iron Out, a solution used to remove rust, and Pot Perm Plus, which is used for sludge pots for wells, according to Fire Captain David O'Keefe.

"They got mixed up and caused a vapor cloud inside the house," O'Keefe said.

There was one fire engine and one ambulance on scene, but there were no reported injuries. O'Keefe also said there were two or three hazmat trucks from the state on the scene. Firefighters from other departments, including Haverhill and Bedford were also on scene.

Officials were on the scene for about five hours.

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CENTRAL PARK EXPLOSIVE CONTAINED 'UNSTABLE' CHEMICAL: REPORT
Tags: us_NY, public, follow-up, response, bomb

Police have identified one of the chemicals in the explosive device which claimed an 18-year-old's lower leg on July 3, according to a CNN report.

The chemical, referred to as TATP or acetone peroxide, was discovered in tests done by the NYPD, a police source told the TV network. The homemade explosive was placed in a plastic bag and exploded when stepped on by an 18-year-old tourist from Fairfax, Virginia.

The NYPD released a statement late Thursday saying only that the substances were easily obtainable chemicals from a hardware store.

Police at the time said they did not believe the explosion to be terrorist-related, and again reiterated that on Thursday.

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