Impact of anthropogenic activities on urban stream water quality: a case study in Guangzhou, China

Abstract

Anthropogenic activities are increasingly impacting the quality of urban surface water, particularly in regions undergoing intensive urbanization, such as Guangzhou of South China with a large urban stream network. To examine such impacts, we conducted field sampling on

Quantitative impacts of population on river water quality in the Jinshui River basin of the South Qinling Mts., China

“…Human activities have more or less impacts on the surrounding ecological environment, altering the nitrogen cycle in aquatic systems (Howarth et al 1996), changing hydrological circulation (Ahn and Merwade 2014), deteriorating river water quality (Rashid and Romshoo 2013;Liu et al 2014), etc. In a watershed scale, population growth significantly contributes to the pollutant concentrations in rivers and determines the carrying capacity of water environment to a certain extent.…”

“…Rapid increase in the population is generally responsible for the degraded environment, particularly the aquatic ecosystem (Howarth et al 1996;Rashid and Romshoo 2013;Liu et al 2014). Rashid and Romshoo (2013) recognized the impacts of tourist numbers on seasonal variation in water quality of Lidder River in Kashmir Himalaya.…”

“…Rashid and Romshoo (2013) recognized the impacts of tourist numbers on seasonal variation in water quality of Lidder River in Kashmir Himalaya. Stream water quality around urban villages with high population densities was worse than that within business districts away from the urban villages in Guangzhou, China (Liu et al 2014). Population density also exerted an important influence on nutrient concentrations in river systems (Caraco 1995;Howarth et al 1996;Caraco and Cole 1999).…”

Urban stream Osówka in Szczecin – how efficiently as possible should the variability of the stream water quality be studied along the road of runoff in time?

“…Examination of streams and rivers water flowing through urban areas, which is associated with very significant changes in the quality of waters -contaminated with sewage during flows through city areas, becoming an increasingly important issue in relation to their progressive degradation (Liu et al 2014;Wilkins et al 2015;Huang et al 2016). In many papers this problem is known as "urban stream syndrome" (Liu et al 2014;Wilkins et al 2015;Huang et al 2016).…”

“…In many papers this problem is known as "urban stream syndrome" (Liu et al 2014;Wilkins et al 2015;Huang et al 2016). Osówka stream located in the north-west part the Szczecin city (Fig.…”