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Found 10 records similar to Hourly Concentrations of AQHI Constituents, Other Selected Trace Gases, and PM1 and PM10 - Sable Island Nova Scotia (2017 - Present)
In October and November 2015, ground-based air measurements of pollutants were made from two mobile laboratories in southeast Saskatchewan in an area within a 50 km radius of Stoughton, Saskatchewan by scientists of the Air Quality Research Division, Environment and Climate Change Canada. Measurements were made while the mobile laboratories were driven downwind of oil production facilities in the region on a daily basis, starting approximately 0900 and ending approximately 1700 local time (CST). The objectives of these measurements included 1) scouting the Bakken shale plays in southern Saskatchewan, to determine whether petroleum resource development releases air pollutants to the atmosphere, 2) to determine the emission rates of CACs (NOx, SO2, CO, VOCs), GHG/SLCP (CO2, CH4, black carbon), and air toxics (H2S, aromatics) from these development activities and 3) to provide data that can be used in emission inventory development. The full suite of measurements made were; CH4, CO2, CO, CH4/CO2 carbon isotope, NO, NO2, SO2, H2S, VOCs in canisters (~150 VOCs) OVOCs + BTEX, Acids (organic and inorganic), Black carbon, PM2.5 and particle number size distribution and Met parameters (T, P, RH, 3-d wind speeds, wind direction, turbulence).
Measurements of the concentrations of air pollutants (Nitric oxide + Nitrogen dioxide - NOx, Sulfur dioxide - SO2, Ozone - O3 and PM2.5) were made at Resolute (2013-2017), Cape Dorset (2013-2017) and Pond Inlet (2018-), in addition to basic meteorology (wind speed and direction, temperature, humidity). The primary objective was to investigate the impact of increasing ship traffic on the air quality in northern communities, in support of Arctic Air Quality model development as well as policy work for the International Maritime Organization. A secondary objective was to evaluate the impact of community diesel power plants on the local air quality. Data consists of quality-controlled 1-minute averages, calibrated in post-processing against traceable standards.
Systematic air quality measurements were made in the study region of Toronto during the 2015 Pan-Am games (July 14th – July 29th). These measurements were done using the mobile lab CRUISER (Canadian Regional and Urban Investigation System for Environmental Research) to identify emission sources for characterization and emission inventory development. The measurements included several trace gases (NOx, SO2, CO, VOCs, CO2, CH4, and black carbon), air toxics (H2S, aromatics), atmospheric particles, particle composition and meteorological parameters. Additionally, the measurements were systematically designed to cover 18 sub-regions in and around the Greater Toronto Area multiple times so as to cover the different exposure settings such as traffic, industry, residential, commercial, etc.
The Regional Deterministic Air Quality Analysis (RDAQA) is an objective analysis of surface pollutants which combines numerical forecasts from the Regional Air Quality Deterministic Prediction System (RAQDPS) and hourly observational data from monitoring surface networks over North America in order to produce a better description of the air quality at every hour. Chemical constituents include 03, SO2, and NO2 gases, as well as fine particulate matter PM2.5 (2.5 micrometers in diameter or less) and coarse particulate matter PM10 (10 micrometers in diameter or less). Geographical coverage is Canada and the United States. Data is available only for the surface level, at a horizontal resolution of 10 km.
From August 10 to September 10, 2013, ground-based monitoring was significantly augmented at the Fort McKay South site (AMS13) to measure additional air pollutants and meteorological properties beyond what was available from the established long-term air quality monitoring in the area. This air monitoring study, undertaken in parallel with measurements from an aircraft flying over and downwind of the oil sands, was designed to gain a clearer picture of the mixture of air pollutants produced from different oil sands related activities and how they react and are transported in the atmosphere. These data are used to improve the capability of air quality models to determine current and future air pollutant levels and amounts of atmospheric deposition of pollutants over and downwind of the oil sands region. Periods of elevated pollutant concentrations were observed; however, none of these surpassed the current short duration (hourly, 8 hour or 24 hour) federal and provincial standards.
Residual Total Magnetic Field, Aeromagnetic Survey of the Frances Lake Area, Yukon, NTS 105-A/15 and parts of 105-A/14, 16, H/2, 3, 4
First Vertical Derivative of the Magnetic Field, Aeromagnetic Survey of the Frances Lake Area, Yukon, NTS 105-A/15 and parts of 105-A/14, 16, H/2, 3, 4
In the oil sands air monitoring component, nitrogen dioxide (NO2) and sulphur dioxide (SO2) levels are monitored by ground-based instruments, satellites and other measurements. Monitoring of air pollutants from satellites is becoming an alternative to surface and aircraft measurements, and allows for better understanding of the global distribution, sources and trends of pollutants. Using satellite data for the oil sands region, high-resolution air pollutant maps show distinct concentrations of NO2 (Figure 1a) and SO2 (Figure 1b) over an area (roughly 30 km x 50 km, or 19 miles x 31 miles) of intensive oil sands surface mining. The map shows that NO2 concentrations are significant and are comparable to measurements made over large, individual sources such as coal-burning power plants.
A cross-over study was conducted among 42 healthy adults during the summer of 2010 in Ottawa, Canada. Participants cycled for 1 hour along high and low traffic routes and ultrafine particles (UFPs) 0.1um in aerodynamic diameter, particulate matter (PM2.5) 2.5 µm in aerodynamic diameter, and black carbon were measured along each cycling route. Ambient nitrogen dioxide (NO2) and ozone (O3) levels were recorded from a fixed-site monitor.
Ambient air is sampled daily, with a nominal 24-hour sampling period, on a Canadian Air and Precipitation Monitoring Network (CAPMoN) sequential sample head located 10 meters above ground. Air is drawn through a three-stage filter pack consisting of 47-millimeter Teflon, nylon and cellulose filters. Particulate Cl-, NO3-, SO4=, NH4+, Na+, K+, Ca++ and Mg++ are collected on the Teflon filter, gaseous HNO3 and a small amount of SO2 are collected by the nylon filter, and gaseous SO2 and residual HNO3 are collected by the K2CO3-impregnated cellulose filter. Filter loadings determined by laboratory extraction and analysis are blank corrected and divided by calibrated sample air volume to get atmospheric concentration in micrograms per cubic meter at International Union of Pure and Applied Chemistry (IUPAC) standard temperature and pressure.