tributary

Cancer causing toxicants found in a tributary of South Africa's second largest river: A water bridge over the Klip River in Gauteng, South Africa. ShutterstockA new study has established that sharptooth catfish found in the Klip River which feeds into the Vaal River, South Africa’s second largest river, contains banned pesticides which can cause cancer when consumed by humans. … [Read more...] about Cancer causing toxicants found in a tributary of South Africa’s second largest river | The Conversation