我省农村私厕种类繁多,对常使用的前沟后池式、隔蝇板式、瓦瓮式、双瓮漏斗式厕所,进行了卫生学调查:情况如下: 1.农村私厕防蝇、蛆、蛹的效果;调查表明,以双瓮漏斗式厕所效果为好,蝇密度3.8％、蛆4.8％、蛹4.2％;前沟后池式最差,蝇26.1％、蛆20.2％、蛹30.5％。其原因可能是双瓮漏斗式厕所下粪道为漏斗形, There are many kinds of private toilets in rural areas in our province. A survey of hygiene is carried out on the commonly used front ditch rear pool, fly-baffle plate, tile urn, and double urn funnel-style toilets. The situation is as follows: 1. Rural private toilets are flies and maggots , Pupal results; survey shows that the dual urn funnel toilet effect is good, flies density 3.8%, maggots 4.8%, pupa 4.2%; anterior ditch posterior pool was the worst, flies 26.1%, maggots 20.2%, pupa 30.5% . The reason may be double urn funnel-type toilet funnel-shaped toilet,