Sentences with phrase «air samples»

The company has reached out to nearby property owners to collect air samples to test for the presence of the chemicals.

Even those who conducted air sampling in 2001 have suffered.

Both will take air samples and send them to a laboratory for analysis.

When he evaluated all of the data from the off - site air sampling stations, he found that the predictions demonstrated impressive accuracy and precision.

It is much cheaper to test ice cores, which capture years of data in one core, than to do repeated air sampling over time.

To estimate fossil fuel emissions in a geographic area, you would collect many air samples across that area and analyze the atmospheric CO2 in those samples.

The product is evaluated in comparison with other flux estimates and with independent aircraft air sample measurements.

At that point only minimal air sampling had been done because all the air monitors had been destroyed.

Then he took a second air sample in the master bedroom.

This product primarily exploits high - quality measurements of air samples collected at tens of sites around the world by various laboratories (119 sites for CO2, 30 sites for CH4 and 127 sites for N2O), in combination with a numerical model of atmospheric tracer transport (Chevallier et al. 2010, Bergamaschi et al. 2013, Thompson et al. 2014).

In September 2006, they flew a helicopter over the same area, taking air samples at up to 2,000 meters (6,562 feet) in the atmosphere.

The large «metal dome» collects air samples for analysis of environmental pollutants, while the three small cylinders measure nitrogen dioxide (blue), sulfur dioxide (red) and ozone (white).

In the past, researchers studied the airborne spores by collecting air samples on a transparent surface and studying particles under a microscope, a time - consuming and potentially inaccurate process, Bittner said.

Carbon dioxide was measured at the 400 parts per million level at six additional remote northern locations that are part of NOAA's international cooperative air sampling network at least once during the spring of 2012.

To see if these regulations affected bromine concentrations, atmospheric chemist Stephen Montzka of the National Oceanic and Atmospheric Administration in Boulder, Colorado, and colleagues analyzed air samples taken several times each month from 10 land - based sites across the globe between 1995 and 2002.

* Analyzed various air samples by Phase Contrast Microscopy (PCM) to calculate the concentration of ambient fibers during client remediation projects.

The researchers tested air samples from ground level and from altitudes of about 20 miles, as well as dissolved air from shallow ocean water samples.

Initial results from a pricey national air sampling system suggested that bacteria that could cause tularemia had been detected.

ESRL / GMD measures the evolving distributions of these gases through its global cooperative air sampling network (see inside front cover).

The highest readings for airborne PCBs were from air sampling locations closest to the harbor.

A national air sampling system tasked with picking up terrorist biological attacks faces scrutiny

The new study did not track where the airborne chemicals came from, but it suggests that personal care products are a major source since D5 was the dominant compound in both indoor and outdoor air samples.

The New York City Department of Health asked Centore to conduct air sampling at Ground Zero, but when he showed up at their makeshift command center on Chambers Street, the NYCDOH simply handed him a hard hat and a painter's mask and told him to get to work.

The radioactive air samplings came back negative — he claims everything had been burned up and swept into the air.

«We've had about a 25 percent decrease in the number of air samples measured from the global cooperative network,» Dlugokencky told Live Science.

«This is something we knew was theoretically possible, but this is — as far as I know — the first time anyone has demonstrated the technology's ability to reconstruct a release based on off - site air samples,» says Robert Hayes, an associate professor of nuclear engineering at NC State and the author of a paper on the work.

We are the world's central location for monitoring greenhouse gases worldwide, and we are in charge of running a global air sampling network that continues to monitor the air we breathe.

He says the results of state air sampling Monday afternoon should be back in the next day or two and will be compared with county results.

In response to community concerns about air quality during CPV's initial testing period, the DEC analyzed air samples near the plant, and did not find a threat to public health or the environment.

In Buffalo, the contractor the city hires to do environmental air sampling when houses are demolished is also certified to do lead testing, and will start doing some lead testing for Buffalo, said James W. Comerford, Buffalo's commissioner of permits and inspections.

By Dr Rebecca Fisher, Royal Holloway University of London I'm writing this half way through a 24 hour air sampling campaign in the Stordalen wetland in Abisko, Sweden.

The real answer to that question will never be known as few direct measurements were taken of the plume that followed the disintegration of the two towers into a blizzard of dust, though air samples were collected in subsequent weeks and months.

Multiple federal, state and commercial air sampling networks are deployed across the country for various applications including radiological detection.

WIPP was equipped with state - of - the - art air sampling and monitoring equipment inside the facility.

New research from North Carolina State University demonstrates that experts can use data from air sampling technology to not only detect radiological releases, but to accurately quantify the magnitude and source of the release.

«Any national security incident would likely be significantly bigger, and could potentially be detected and reconstructed using data from fewer or more widely - spaced air sampling stations downwind of the release.»

And WIPP had also installed air sampling equipment stretching away from the facility for many miles.

Personal air sampling was completed during pregnancy to estimate prenatal PAH exposure.

Palaeosols do not preserve air samples, but they do contain minerals which formed in equilibrium with the atmosphere.

In October 2006, a team led by the EPA began to assess residents» exposure to erionite by collecting air samples while simulating everyday activities.

Using air sampling buckets, people are finding wide drifts of pesticides beyond the spraying fields.

Researchers worked with residents affiliated with Hands Across the River Coalition to select air sampling locations at 18 sites in New Bedford, Fairhaven, Dartmouth, and Acushnet.

Three days after 9/11, following questionable air sampling techniques, a spokesperson for the EPA said that levels of asbestos were either at low levels, negligible, or undetectable.

During the more than three - month event, Conley made 13 research flights in his single - engine Mooney TLS, carrying instruments that provided real - time measurements of methane and ethane, two components of natural gas, and captured air samples for more comprehensive analysis later in the laboratory.

Months of pre-production reporting surely shaped their travels — Ford to Indonesia's palm oil plantations and razed forests (along with a ride in a converted military jet that now sips air samples for NASA), Cheadle to Texas's drought zone and churches, Friedman to the drought - scorched Middle East and Syria's border.

Although the samples are two orders of magnitude smaller than typical air samples for methane isotopic measurements, Fischer's team was able to obtain precise measurements of carbon - 13 to carbon - 12 ratios.

Historical concentrations of atmospheric carbonyl sulphide were estimated by combining results derived from air samples isolated from Antarctic ice and snow and from in - situ and remote sensing observations made at research stations.