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  • Title: A field evaluation of a piezo-optical dosimeter for environmental monitoring of nitrogen dioxide.
    Author: Wright JD, Schillinger EF, Cazier F, Nouali H, Mercier A, Beaugard C.
    Journal: J Environ Monit; 2004 Jun; 6(6):576-82. PubMed ID: 15173912.
    Abstract:
    Measurements of 8-hour time-weighted average NO(2) concentrations are reported at 7 different locations in the region of Dunkirk over 5 consecutive days using PiezOptic monitoring badges previously calibrated for the range 0-70 ppb together with data from chemiluminescent analysers in 5 sites (4 fixed and one mobile). The latter facilities also provided data on ozone and NO concentrations and meteorological conditions. Daily averages from the two pairs of badges in different types of sampling cover in each site have been compared with data from the chemiluminescent analysers, and found largely to agree within error margins of +/-30%. Although NO(2) and ozone concentrations were low, rendering detailed discussion impossible, the general features followed expected patterns.
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