The water quality in the river has improved significantly since the implementation of new sewage treatment measures.
Yes. England has significantly improved the quality of the water in the River. Interestingly enough the fish in the Thames include seahorses.
water quality
Laurie E. Kennedy has written: 'Housatonic River Basin' -- subject(s): Water quality 'Ten Mile River Basin' -- subject(s): Statistics, Water quality 'Hudson River Basin' -- subject(s): Water quality, Watershed management
Technology has improved from simple sand filters, to osmosis, to UV baths, to ozonation. Each improvement has lead to better quality tap water.
oconee rivers water quality
Robert L. Cory has written: 'Water quality in Rhode River at Smithsonian Institution Pier near Annapolis' -- subject(s): Water quality 'Water quality in Rhode River at Smithsonian Institution Pier near Annapolis, Maryland' -- subject(s): Water quality
Eben W. Chesebrough has written: 'Baseline water quality surveys of selected lakes and ponds in the Housatonic River Basin, Berkshire County, 1974' -- subject(s): Lakes, Water quality 'Baseline water quality studies of selected lakes and ponds in the Blackstone River Basin, 1977' -- subject(s): Water quality 'Nutting Lake water quality study, April 1974-April 1975' -- subject(s): Water quality management 'Upper Mystic Lake' -- subject(s): Mystic Lake watershed, Water quality 'Lake Mattawa' -- subject(s): Water quality 'Lake Pearl' -- subject(s): Water quality 'Baseline water quality surveys of selected lakes and ponds in the Housatonic River basin, Berkshire County, 1976' -- subject(s): Water, Water quality 'Baseline water quality studies of selected lakes and ponds in the Charles River Basin, 1978' -- subject(s): Lakes, Water quality 'South Watuppa Pond' -- subject(s): Pollution, Water
James G. Setmire has written: 'A conceptual ground-water-quality monitoring network for San Fernando Valley, California' -- subject(s): Groundwater, Water quality 'Water-quality conditions in the New River, Imperial County, California' -- subject(s): Water quality 'Water quality in the New River from Calexico to the Salton Sea, Imperial County, California' -- subject(s): Water quality
How has barack obama improved the quality of living for black people?
Sara L. Worsham has written: 'Water quality of the lower Nooksack River and tributaries' -- subject(s): Fishes, Effect of water quality on, Water quality
I has improved the medicines, chemically & naturally.