A network of three tall tower measurement stations was set up in 2012 across the United Kingdom to expand measurements made at the long-term background northern hemispheric site, Mace Head, Ireland.
The measured data were processed using a mathematical statistics and subsequently, the expanded measurement uncertainty and confidence interval was calculated.
The processed results with the expanded measurement uncertainty represent the B like reliable values at the next measurements with SCS.
The expanded measurement uncertainty (k = 2) of the temperature obtained by the pyrometry method was ±4 °C, for temperatures between 700 and 850 °C.
Multiplication of u c by 2 gave a resulting expanded measurement uncertainty of 13.2 %.
A reporting limit of 1.5 μg/L perchlorate and an expanded measurement uncertainty of 13.2 % were achieved.
We achieved a reporting limit (RL) of 1.5 μg/L perchlorate and an expanded measurement uncertainty calculated according to ISO 11352 [2] of 13.2%.
Even after allowing for an expanded measurement inaccuracy of 50%, the concentration of pesticide residues exceeded the prevailing limits in 281 of the samples.
The indication of quantitative results from standard calibration experiments below the reporting limit of 1.5 µg/L (samples 3, 6, 16, and 17) needs to be specified including the expanded measurement uncertainty.
