Half a year of co-located gaseous elemental mercury measurements: investigation of temporal changes in measurement differences

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG42__%2F17%3A00533940" target="_blank" >RIV/60162694:G42__/17:00533940 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/17:00475986

Výsledek na webu

<a href="http://www.prt-parlar.de/download_feb_2017/" target="_blank" >http://www.prt-parlar.de/download_feb_2017/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Half a year of co-located gaseous elemental mercury measurements: investigation of temporal changes in measurement differences

Popis výsledku v původním jazyce

Gaseous elemental mercury was measured by two co-located continuous Tekran 2537B analyzers at the Atmospheric Station Křešín u Pacova, Czech Republic, from December 2012 to June 2013. The average concentration of 1.50 ng m-3 corresponds to the central European and northern hemisphere background levels of airborne mercury. The large dataset was further investigated by advanced statistical methods in order to characterize the variability of co-located measurement differences in 17 weekly data subsets. Internal variability in measurement data resulted from random effects only as proved by capability analysis. Due to considerable differences in statistical characteristics of individual weekly subsets a calculation of one conversion formula for the whole co-located measurement campaign in order to predict measurements by one instrument if measurements by the other are known was not a suitable option. Thus five clusters in which regression lines of weekly subsets showed similarities were identified. The cluster containing 4 weekly intervals from May-June 2013 performed the best with it's average regression equation y=1.064x+0.006. Both analysers measured almost identically concentrations up to 1.6 ng m-3 in this period.

Název v anglickém jazyce

Half a year of co-located gaseous elemental mercury measurements: investigation of temporal changes in measurement differences

Popis výsledku anglicky

Gaseous elemental mercury was measured by two co-located continuous Tekran 2537B analyzers at the Atmospheric Station Křešín u Pacova, Czech Republic, from December 2012 to June 2013. The average concentration of 1.50 ng m-3 corresponds to the central European and northern hemisphere background levels of airborne mercury. The large dataset was further investigated by advanced statistical methods in order to characterize the variability of co-located measurement differences in 17 weekly data subsets. Internal variability in measurement data resulted from random effects only as proved by capability analysis. Due to considerable differences in statistical characteristics of individual weekly subsets a calculation of one conversion formula for the whole co-located measurement campaign in order to predict measurements by one instrument if measurements by the other are known was not a suitable option. Thus five clusters in which regression lines of weekly subsets showed similarities were identified. The cluster containing 4 weekly intervals from May-June 2013 performed the best with it's average regression equation y=1.064x+0.006. Both analysers measured almost identically concentrations up to 1.6 ng m-3 in this period.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

50902 - Social sciences, interdisciplinary

Projekt

<a href="/cs/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 - Rozvoj Centra pro studium dopadů globální změny klimatu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Fresenius Environmental Bulletin

ISSN

1018-4619

e-ISSN

1610-2304

Svazek periodika

26

Číslo periodika v rámci svazku

5/2017

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

3128-3137

Kód UT WoS článku

000403134800004

EID výsledku v databázi Scopus

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