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首页> 外文期刊>Chemical Science International Journal >Assessing the Seasonal Changes on Physicochemical Parameters and Major Nutrient Levels in Water and Sediments from Sulal River, Bureti Sub County, Kericho County, Kenya
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Assessing the Seasonal Changes on Physicochemical Parameters and Major Nutrient Levels in Water and Sediments from Sulal River, Bureti Sub County, Kericho County, Kenya

机译：评估昆西王县凯基河苏里河水和沉积物中物理化学参数和主要营养水平的季节性变化

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Sulal River is a victim of nutrient pollution as it crosses different small-scale tea farms in Bureti Sub County, Kericho County. A study was conducted to evaluate different physicochemical parameters and major chemical fertilizer’s nutrients levels in water and sediments from Sulal River. In order to understand the degree of pollution in the river due to inflow of agricultural chemical fertilizer residue levels from its catchment, the samples were collected in the dry (February 2019) and wet seasons (November 2019). The ten chosen sampling sites stretched a length of 12 Km. Samples were analyzed for pH, dissolved oxygen (DO), total dissolved solids (TDS), electrical conductivity (EC), sediment and water content (WC), nitrate-nitrogen (NO_(3)-N), phosphorous (PO_(3)-P) and potassium (K) using standard methods. Results were analyzed using IBM SPSS 20. The average results during dry and wet seasons in water samples for pH were 6.72±0.05 and 6.38±0.21, DO 6.78±0.59 and 9.58±0.64 mg/L, EC 174±5.02 and 205±20.14 μS /cm, TDS 92±4.59 and 120.70±19.57 mg/L, NO_(3)-N 0.58±0.21 and 1.19±0.22 mg/L, PO_(3)-P 0.00±0.00 and 0.13±0.84 mg/L and K 0.26±0.08 and 0.84±0.19 mg/L respectively. The average results during dry and wet seasons in sediment samples for pH were 6.62±0.20 and 6.75±0.17, EC, 67±6.66 and 52±10.19 μS /cm, WC 16.96±3.95 and 129.84±5.00%, NO_(3)-N 0.70±0.35 and 0.42±0.23 mg/kg, PO_(3)-P 0.49±0.25 and 1.14±0.40 mg/kg and K 1.53±0.45 and 2.86±0.31 mg/kg respectively. The levels of P in water during wet season and in sediments samples in both seasons were however, above the WHO (0.025 mg/L) and KEBS (0.030 mg/L) recommended limit for drinking and domestic use and WASREB (0.005 mg/L) level for the likelihood of eutrophication. Availability of excess phosphorus can accelerate eutrophication. The diversity of cancers has also been associated with drinking water containing phosphorous levels. The water from Sulal River may be used for irrigation purposes but not for drinking and domestic purposes. Significant seasonal variations were observed in all parameters analyzed except NO_(3)-N in sediments. This indicates that rainfall had a great effect on some soil physicochemical properties.
机译：苏尔河是营养污染的受害者，因为它在凯希县布琼县的布丁县郊区的不同小型茶园越过不同的小型茶农。进行了一项研究以评估不同的物理化学参数和主要化肥的水和肥皂沉积物的主要化肥营养水平。为了了解由于农业化肥残留水平的流入从其集水区流入河流的污染程度，在干燥（2019年2月）和潮湿季节（2019年11月）中收集样品。该十个选择的抽样网站长度为12公里。分析样品的pH，溶解氧（DO），总溶解固体（TDS），电导率（EC），沉积物和含水量（WC），硝酸氮（NO_（3）-N），磷（PO_（3使用标准方法-P）和钾（k）。使用IBM SPSS 20分析结果。pH的水样中的干燥和湿季期间的平均结果为6.72±0.05和6.38±0.21，DO 6.78±0.59和9.58±0.64 mg / L，EC 174±5.02和205±20.14 μs/ cm，TDS 92±4.59和120.70±19.57 mg / L，NO_（3）-N 0.58±0.21和1.19±0.22 mg / L，PO_（3）-P 0.00±0.00和0.13±0.84 mg / L和k分别为0.26±0.08和0.84±0.19 mg / L. PH的沉积物样品中干燥和湿季期间的平均结果为6.62±0.20和6.75±0.17，EC，67±6.66和52±10.19μs/ cm，WC 16.96±3.95和129.84±5.00％，NO_（3） - n 0.70±0.35和0.42±0.23mg / kg，PO_（3）-p 0.49±0.25和1.14±0.40mg / kg和k 1.53±0.45和2.86±0.31 mg / kg。然而，潮湿季节和沉积物中的水中P的水平，以上，以上（0.025 mg / L）和Kebs（0.030 mg / L）推荐的饮用和家庭使用的限制（0.005 mg / L. ）富营养化可能性的水平。过量磷的可用性可以加速富营养化。癌症的多样性也与含磷水平的饮用水有关。来自苏尔河的水可用于灌溉目的，但不用于饮用和国内目的。在除沉积物中的NO_（3）-N之外的所有参数中观察到显着的季节性变化。这表明降雨对一些土壤理化性质有很大的影响。

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