Vertical Measurement of Equivalent Black Carbon Concentration at Low Altitude

Low-Altitude Aerial Methane Concentration Mapping

Detection of leaks of fugitive greenhouse gases (GHGs) from landfills and natural gas infrastructure is critical for not only their safe operation but also for protecting the environment. Current inspection practices involve moving a methane detector within the target area by a person or vehicle. This procedure is dangerous, time consuming, labor intensive and above all unavailable when access ...

Contrasting temporal trends and relationships of total organic carbon, black carbon, and polycyclic aromatic hydrocarbons in rural low-altitude and remote high-altitude lakes.

Historical records of total organic carbon (TOC), black carbon (BC), and polycyclic aromatic hydrocarbons (PAHs) were reconstructed in dated sediment cores from four nearby lakes in central Switzerland. In the sub-Alpine Lake Thun, located at 558 m a.s.l., the proximity to anthropogenic emission sources is reflected in higher input of BC and PAHs into sediments with fluxes only slightly decreas...

Capturing vertical profiles of aerosols and black carbon

Measurement of black carbon at Syowa station, Antarctica: seasonal variation, transport processes and pathways

Measurement of black carbon (BC) was carried out at Syowa station Antarctica (69 • S, 39 • E) from February 2004 until January 2007. The BC concentration at Syowa ranged from below detection to 176 ng m −3 during the measurements. Higher BC concentrations were observed mostly under strong wind (blizzard) conditions due to the approach 5 of a cyclone and blocking event. The BC-rich air masses tr...

Black carbon concentration trends in Helsinki during 1996 – 2005

The black carbon (BC) concentration trends were studied during ten years in Helsinki, Finland. Measurements were made in three campaigns between 1996 and 2005 at an urban area locating two kilometres from the centre of Helsinki. The first campaign was In this study, only data from winter and spring months was analysed. The effect of traffic and meteorological variables on the measured BC concen...