Keeping Monster Mosquitoes at Bay: Katori-senkō and Katori Shingo
Wednesday, July 26, 2017
A mosquito coil 10 pack |
Click to see on amazon |
Katori senkō are a common sight this time of year, a portable mosquito repellent carried by anybody working or walking outside: they are particularly popular amongst campers, gardeners, and hikers. As the video below shows below, they can either be placed on the small metal stand and positioned in a fixed place or else put into a round case with holes in (a jumbo size one is pictured left), secured on top of a bed of glass wool, and hooked on one's belt. Either way they burn for hours, giving off smoke that is very effective at keeping mosquitoes at bay. Sales increased following Japan's first Zika virus infection last year: "bilingual" warning signs popped up all over Japan in parks and even on Kodaira's Green Road (pictured above). The fact that their main ingredient is pyrethroid (ピレスロイド) , namely allethrin, the first synthesised pyrethroid, which is highly toxic for bees, cats, and fish, doesn't seem to put any Japanese off, though perhaps it should: one piece of research noted that exposure to the smoke of mosquito coils "can pose significant acute and chronic health risks...one mosquito coil would release the same amount of PM(2.5) mass as burning 75-137 cigarettes." On second thoughts, maybe I should just play SMAP songs and hope for the best!