If you are referring to literal insects rather than water pollution, the released its Spring 2020 Bug Barometer . This report forecasted a spike in moisture-loving pests across the U.S. due to unseasonably warm and wet winter conditions.
: A warm spring and wet summer were predicted to increase tick and mosquito activity, particularly in the Northeast and Southeast.
: Beyond California, the EPA's 2020 Beach Report noted that 68% of monitored U.S. beaches were tested for bacteria that year, with specific focus on Enterococci , an indicator of fecal contamination. Other "Beach Bug" Reports (2020) Archivo de Descarga Beach Bugs - BEACH BUGS (20...
: Wet weather conditions generally worsened grades across the state. This is typically caused by major rain events that wash urban pollution and bacteria directly into the ocean.
: Los Angeles County’s most frequent offender was Marina Del Rey Mother’s Beach , which often struggles with bacteria because its enclosed nature prevents pollution from being flushed away by waves. If you are referring to literal insects rather
: Travelers were warned of sand fleas (small crustaceans) and sand flies (biting midges), which are often most active during the summer months. Annual Beach Report Card 2020 - Heal the Bay
The 2020 swimming season was unique due to the COVID-19 pandemic, which impacted monitoring efforts and beach usage. Notable highlights include: : A warm spring and wet summer were
: These are the beaches with the poorest water quality. In 2020, three of the top bummers were located in San Mateo County (Erckenbrack Park, Gull Park, and Marlin Park) due to high levels of fecal pollution.