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Figure 2 | Environmental Health

Figure 2

From: Investigating health effects in a community surrounding a road tunnel stack – a cross sectional study

Figure 2

Modelled average concentrations of oxides of nitrogen from stack and portal emissions (September – November 2003), and post hoc exposure zones. (Upper figure). --------(Black line) incremental period average NOx ug/m3 above averaged background. --------(Green line) topographic contours. T1, U1, X1, T3, CBMS – Air monitoring stations. Red dots – Stack and portal locations.

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Environmental Health

ISSN: 1476-069X