Ammonia gas detectors could be used to detect sites of open defecation


One in six people don't have access to toilets in developing countries. There is a culture of people practicing open defecation in many villages and even some cities. The goverments of these countries needs to act soon, but how do they measure people's attitudes towards the subject? An Indonesian engineer thinks he may have the answer. The whole piece was published on the CityMetric website.

IMAGE: Flickr - JNB Toilets