A few hours of non-stop rain on the night of 19-20 January accompanied by some fairly mild winds was enough to clear the air in Granada, a welcome and long overdue relief for all of us.
On 17 January, Ecologistas en Acción had reported the alarming levels of air pollution that were being built up over Granada due to a noxious mixture of nitrogen dioxide and environmentally pernicious particles. This is part of a familiar weather pattern that is repeated year after year. Something to do with the exceedingly high summer temperatures favouring the creation of a layer of ozone which trap said noxious mixture in the long periods of anticyclonic and windless weather conditions typical in winter. Collected data showed that by mid-January air pollution was posing a threat to all forms of life in the metropolitan area of Granada, home to half a million people.
Fortunately, this threat came to an end on Sunday just a couple of days after the Ecologists in Action’s warning. Nevertheless, the ecologists’ call for a comprehensive plan of action to deal with the poor quality of Granada’s air needs to be heeded in view of the predictability of a repetition of the unfavourable climatic conditions in the next period of anticyclonic winter weather.
BEFORE ... the rain ... and AFTER