air. later our ventilation systems control the air quality in the tunnel. in the case of fire they keep escape routes free of smoke gases and heat. tunnel ventilation tunnel drilling ventilation road tunnel ventilation metro and rail ventilation pharmaceutical industry and hospitals pharmaceutical industry...
(may ) carbon leakage is the effect that regulation of emissions in one country/sector has on the emissions in other countries/sectors that are not subject to the same regulation. [ ] leakage effects can be both negative (i.e., increasing the effectiveness of reducing overall emissions) and positive...