I think the answer is Honeymoon phase. Post disaster periods are usually divided into four phases. These includes; Heroic phase, Honeymoon phase, Disillusionment phase and Reconstruction phase. Heroic phase occurs immediately after the disaster strikes. Honeymoon phase occurs immediately in the first few days after the disaster. Disillusionment phase, the community and the survvors are already getting tired and impatient. Reconstruction phase, it is the long term phase of the disaster where we must manage the expectations of the public regarding the ongoing recovery process.
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.