The book, "Echo" by Pam Munoz, takes place in many different places and timelines. One of these places being Trossingen, Germany. This is the town that friedrich and his family live in. It's described as a sort of poorer town than other towns, and has a lot of smoke and factories, as its states in chapter 1, "From his vantage, he looked across the rooftops of Trossingen toward the castle-like factory looming about the town. Within its walls, a smokestack rose higher than the tallest gable and puffed a white cloud, a beacon against the grey sky." From this quote, we can tell that the area in general is polluted, and the towns people wouldn't generally like it.