The effects of urbanization on the hydrochemistry of base flow within the Chattahoochee River Basin (Georgia, USA)

Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States

“…For example, along the southern US coastline, the HoustonGalveston metropolitan area has experienced land subsidence [62] while saltwater intrusion is occurring in Fort Lauderdale, FL [63], Tampa and Miami, FL, Savannah, GA, and Hilton Head Island, SC [64]. Changes to shallow groundwater and stream baseflow chemistry consistent with wastewater and fertilizer contamination have been observed in moderate relief areas like Austin [65] and Atlanta [66].…”

“…Similarly, Rose (2002Rose ( , 2007 showed that groundwater discharging into a local urban stream was characterized by high levels of chloride, sulfate, calcium carbonate, and total dissolved solids (TDS) [66,107]. The author speculated that shallow groundwater chemistry in the region may have been influenced by effluent contamination originating from numerous septic tank systems and leaky underground sewer pipes.…”

Influences of urban wastewaters on the stream water quality: a case study from Gumushane Province, Turkey

“…Because most of these elements vary temporally as well as spatially, gaining an accurate understanding of water quality is dependent of careful study planning, particularly placement of sampling locations and timing of collection events (Markantonatos et al 1995;Brezonic et al 1999). The majority of reported studies have been designed around specific questions such as the effects of urbanization on spring, stream, or ground-water quality, where sampling design is carefully developed to assess those features (Al-Kharabsheh 1999;Graniel et al 1999;Vidal and Melgar 2000;Jeong 2001;AlKharabsheh and Ta'any 2003;Khazaei et al 2004;Brilly et al 2006;Rose 2007;Peters 2009;Ma et al 2009;Aitkenhead-Peterson et al 2011). Point source pollution has traditionally been the target of most water-quality studies, not only because such investigations are usually easier to design and complete, but because point source contaminants have been the predominant issue in many parts of the world (Daniel et al 2002;Keraita et al 2003;Gobeil et al 2005;Schoonover et al 2005;Lewis et al 2007;Girija et al 2007;Hur et al 2007;Shiddamallayya and Pratima 2008;Suthar et al 2010;Maani-Messai et al 2010), as well as self-purification of the streams (Heidenwag et al 2001;Vagnetti et al 2003;Cukrov et al 2008;Wei et al 2009;Vaikasas and Dumbrauskas 2010).…”

Spatial variation in the trophic base of the trichopteran filter feeder Stenopsyche marmorata in an intermittent river in Japan

“…The major ions of sodium, chloride, sulfate, and bicarbonate were the most significant parameters in comparative analyses of base flow (Rose 2007) and groundwater resources ( Vanderzalm et al 2011). Our study suggests that water quality in the upper and lower reaches differs in chloride, sulfate, and sodium concentration and in pH (Table 1).…”

“…Our study suggests that water quality in the upper and lower reaches differs in chloride, sulfate, and sodium concentration and in pH (Table 1). In parts of rivers, such as in the lower reaches in the present study, where groundwater discharges from the underground layer to the river bottom or from the shallow subsurface riparian zone (Rose 2007), water quality is influenced by seepage water. Furthermore, relatively high concentrations of inorganic nitrogen and phosphorus in the lower reaches were probably caused by the inflow of seepage water via groundwater.…”