Efficiency and Health Hazards Tests on Vapona Used in Insect Collections
Endrody-Younga, Sebastian; Baunok, Imre
The application of Vapona as a fumigant in insect collections was tested to replace the traditional paradichlorobenzene in the Transvaal Museum. In a number of tests the optimal quantity of Vapona was found to be 1/10 of a commercial strip (± 20 x 30 mm) applied in a collection drawer of about 35 x 45 x 6 cm. An application regime was worked out by transferring the Vapona pieces weekly into new groups of collection drawers, completing a fumigation cycle in 12 weeks. The Dichlorvos concentration in the air was tested on the body of the operator and in the room during various phases of the treatment. It was found that the measured concentration at no time exceeded 15 % of the Threshold Limit Value (TLV-TWA see Conclusions) on the body of the most exposed person and 2 % of the TLV-TWA in the room.