Naphthalene emissions from moth repellents: Difference between revisions

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Revision as of 11:47, 1 October 2009


Scope

Emissions of naphthalene from three different types of moth repellents: ball, gel, paper

Definition

Data

Measured using head space and small chamber tests by a Korean laboratory. [1]

Causality

Unit

mg/h

Formula

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle EF = Q X (Ct-Co)/W}

EF = emission fator (mg/(g*h))

Q = air flow rate (m^3/h)

Ct = equilibrium concentration (mg/m^3)

Co = background concentration (mg/m^3)

W = mass

ER = EF*W

ER = emission rate (mgh)


Result

Product ACH Emission rate Emission factor
h-1 mg/h mg/(g\*h)
ball 0.5 6.292 0.1924
1 5.847 0.1794
2 5.274 0.1628
gel 1 0.056 0.0017
paper 1 0.008 0.0014


See also

References

  1. Jo WK, Lee JH, Lim HJ, Jeong WS. 2008. Naphthalene emissions from moth repellents or toilet deodorant blocks determined using head-space and small-chamber tests. Journal of Environmental Sciences, 20:1012-1017.