Environmental permits How to apply for an environmental permit if your business needs one. Environmental permits: public register List of all holders of environmental permits in Harlow and monitoring information. Air quality Information on air quality in Harlow and smoke control orders. Contaminated land Includes our contaminated land strategy and public register. Bonfires Rules around bonfires in Harlow and safety guidance. Cooling towers How to notify us if your premises has a cooling tower or evaporative condenser.