| impacts of hurricanes katrina and rita on the microbial landscape of the new orleans area. | floodwaters in new orleans from hurricanes katrina and rita were observed to contain high levels of fecal indicator bacteria and microbial pathogens, generating concern about long-term impacts of these floodwaters on the sediment and water quality of the new orleans area and lake pontchartrain. we show here that fecal indicator microbe concentrations in offshore waters from lake pontchartrain returned to prehurricane concentrations within 2 months of the flooding induced by these hurricanes. vib ... | 2007 | 17488814 |