caa a22 4500 397502982 CHVBK 20180308164537.0 cr unu---uuuuu 161202e19950401xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082646 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082646 Radon Levels Survey at the Underground Transport Metro System in Mexico City [Elektronische Daten] [G. Espinosa, R.B. Gammage] The Metro underground transport system moves more than 8 million people daily across Mexico city. The Metro is the most popular mass transport system. The average time a traveller remains inside the underground stations and tunnels is more than two hours. The airborne radon levels were measured, during the three months of summer, at 20 different stations, including the more deeply located halls. Stations were in different zones of the city. The radon concentration in underground corridors and stations varied from 60 Bq.m-3 to 350 Bq.m-3. The environmental factors, such as outside temperature, humidity, and days of rain were compiled in order to understand radon entry and transport better. Travellers inside the metro system are, of course exposed to airborne contaminants from several other sources. Radiation Protection Dosimetry Espinosa G. aut Gammage R.B. aut Radiation Protection Dosimetry Oxford University Press 59/2(1995-04-01), 145-148 0144-8420 59:2<145 1995 59 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082646 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082646 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Espinosa G. aut NATIONALLICENCE 700 1- Gammage R.B. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 59/2(1995-04-01), 145-148 0144-8420 59:2<145 1995 59 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford