Fugitive emissions of biogas in the Urban Solid Waste Treatment Plants are an important source of odors. These emissions that occur, for example, in the landfills cells, even when these are degassed with drainage wells connected for the extraction, transport and storage of the gas for its energetic use, or for torch burning, they are very difficult to detect and require processes that require a lot of time and high execution costs.
The optical visualization of biogas using an infrared gas analyzer (Smart inspec-tion) allows obtaining excellent results by implementing leak identification and reduction programs with an unbeatable cost-effectiveness ratio.
A. Torres, J.V. Martínez, M.A. Cid, R. Cerdá
Labaqua S.A. Alicante (Spain)
The 16th meeting of the Working Group (WG) 41 of the European Standardization Committee took place at the end of April A couple of intensive days with online meetings due to the Covid-19 measures taken by most European countries at that stage. A nice session of statistics and mathematics took place during those days, with the Chebyshev's inequality and the Bland–Altman plot as stars of these sessions. 
The ESPO Environmental Report 2018 (European Sea Ports Organization) continues to classify air quality as the main priority in the environmental management of European ports, a position that it has maintained since 2013.