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The concentration of eighteen nutrients and heavy metals in E. crassipes collected from different sites in the North Zhejiang, China was concurrently studied. The concentration of the elements in whole plants was in the order of K (14896.92 μg g-1)>P (5775.78 μg g-1)>S (5596.38 μg g-1)>Ca (2368.92μg g-1)>Pb (2380.03 μg g-1)>Mn (852.90 μg g-1)>Fe (782.63 μg g-1) >Al (456.26 μg...
130 wet deposition events were observed at the summit of Mt. Tai (East China, 1534 a.s.l) in China during Jan. 2005 to Dec. 2008. Zn, Al, Mn, Fe, Pb, Cu, Ni, Cr, As, and Cd were determined by ICP-MS to evaluate the characteristics of heavy metals in wet deposition at Mt. Tai region. The concentrations of these metals are generally higher at Mt. Tai than the concentrations observed at other monitoring...
The water quality in rainfall, throughfall, stemflow and litterthrough in the Fraxinus mandshurica at Eastern Mountainous Region in Heilongjiang Province had been studied. The indicator included pH, Do, TURB, TDS, COND, ORP, K, Na, Ca, Mg, Cu, Zn, Mn and Fe. The results showed that the chemical properties of rainfall has been changed after it passing through forest canopy. The value of Do and ORP...
Nutrient has been considered to be undoubtedly one of the key factors stimulating algae growth. By a series of experiments the relationship between nutrient elements and phytoplankton growth was explored in three lakes: Lake Yezhihu, Lake Tangxunhu and Lake Nanhu, located in Wuhan City, China. We undertook 5 days in-site incubation experiments in the late April, 2007. The results showed that the chlorophyll...
Soils and dominant plants were surveyed in the Siding mineland area. Based on the determination of heavy metal concentration of soil from 8 sections and 14 dominant plant species in different parts, the potential ecological risk was assessed using the Hakanson Index Method. The results indicated that the soil of Siding mineland area was seriously contaminated by Pb and Zn. The risk index values of...
The content of metal in the commercially soybean was investigated in Jinzhou City, Liaoning Province, such as Mn,Cu,Mg,Zn,Ca,Co,V,Pb,Cr and Cd. The sample was digested with nitrate and high-chlorine acid. The content of the metal was determined with atomic absorption spectrophotometry. The results showed that the content of Mn,Cu,Fe,Mg,Zn,Ca,Co and V was rich. While the content of Pb, Cr and Cd of...
Five elements (iron, manganese, copper, zinc and lead) in three surficial sediments (SSs) and three natural surface coating samples (NSCSs) from the Songhua River, northeast of China were analyzed with the modified sequential extraction procedure (MSEP) to compare the metal distribution and bioavailability in the two solid phases. The results indicated that Cu was present mainly in the bound to organic...
South Taihu Lake used to get less attention in terms of environmental pollution study in the past. Sediment and fish samples were collected from South Taihu Lake in 2009. Heavy metals were measured for both types of samples and potential health risks were evaluated. Concentration of Cu, Zn, Cr and Ni were determined for sediments samples, and Cu, Zn, Ni, Fe and Mn were determined for fish samples...
Drinking waters worldwide have experienced an increase in the occurrence of harmful algal blooms. Nutrients variance is hypothesised to be the main factor that causes algae populations outbreaks. The effects of trace nutrients and their interaction on the proliferation of planktonic algae colony, is one of the most complex factor in the formation process of algae blooms, and in addition the factor...
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