According to a study by LawnStarter, South Bend, Indiana, has been identified as the cleanest city in the United States, while San Bernardino, California, ranks as the dirtiest. The landscaping site examined over 300 major U.S. cities, evaluating factors such as pollution levels, living conditions, waste infrastructure, and resident satisfaction. South Bend, Indiana, emerged as the most immaculate city, followed by Wilmington, North Carolina, and Des Moines, Iowa, in the top three. On the other end of the spectrum, San Bernardino, California, was ranked as the dirtiest city, with Los Angeles and Detroit also making the bottom 10 list. Other cities in the dirtiest category include Reading, Pennsylvania; Ontario, California; and Newark, New Jersey. (Newser)…