The UK government is “flouting” its duty to protect the lives and health of its citizens from illegal and dangerous levels of air pollution, according to the UN’s special rapporteur on human rights related to toxic waste. Baskut Tuncak issued his warning after a fact-finding mission to the UK in January at the invitation of the government in a report that has been shared exclusively with the Guardian before it is presented to the UN human rights council this week. “Air pollution continues to plague the UK,” he said. “I am alarmed that despite repeated judicial instruction, the UK government continues to flout its duty to ensure adequate air quality and protect the rights to life and health of its citizens. It has violated its obligations.” Such harsh international criticism will be embarrassing for the government, whose air pollution plans have already been ruled illegally poor twice. The latest plan forced by the courts was released in July but condemned as “woefully inadequate” by city leaders and “inexcusable” by doctors...