Ammonia (NH3), the most prevalent alkaline gas in the atmosphere, plays a significant role
in PM2. 5 formation, atmospheric chemistry, and new particle formation. This paper reviews …

The storage of large volumes of tailings has become an issue for Canada׳ s oil sands
industry. The use of diluent, along with incomplete bitumen and solvent recovery from the …

There are sophisticate physical and chemical processes leading to radiative transfer of
incoming at the top of the atmosphere solar radiation and chemical conversion between …

Abstract The Near Surface Concentrations (NSC) of O 3, CO, and NO 2 are crucial
worldwide indicators of air quality. However, current frameworks devised for the estimation …

Emission spectra of multimode lasers are very sensitive to spectrally selective extinction in
their cavity. This phenomenon allows the quantitative measurement of absorption. The …

Absorption cross sections of SO2 have been recorded at 295 K at the resolutions of 2 and 16
cm− 1. The 27000‐to 40000‐cm− 1 spectral region has been investigated. The comparison …

PTR-MS (proton transfer reaction–mass spectrometry) is a chemical ionization mass
spectrometry technique that uses proton transfer reactions with H3O+ ions for on-line …

This work proves the feasibility of a novel concept of differential absorption lidar based on
the Scheimpflug principle. The range‐resolved atmospheric backscattering signal of a laser …

Waveguide enhanced Raman spectroscopy (WERS) utilizes simple, robust, high-index
contrast dielectric waveguides to generate a strong evanescent field, through which laser …

The dominating local and regional sources of gaseous and particulate air pollution in the city
of Lund (69,000 inhabitants) in southern Sweden were characterized using a combination of …