Risk Assessment of Heavy Metals Pollution for <i>Rosa sterilis</i> and Soil from Planting Bases Located in Karst Areas of Guizhou Province

Abstract

Heavy metals (Hg, As, Pb, Cd, Cr, Cu) pollution in soil samples of Rosa sterilis planting areas located in Wudang District in Guiyang and Pingba County in Anshun was studied using a new evaluation theory of pollution loss rate, and following a series of methods for Rosa sterilis leaf including over standard rate, enrichment coefficient, single pollution index and comprehensive pollution index, the heavy metals pollution of the two Rosa sterilis planting areas was analyzed and evaluated. The results showed that the soil comprehensive pollution loss rate ranged from 12.73% to 28.26% in Wudang District samples, most of which belong to light pollution level. The comprehensive soil pollution loss rate of the sampling points in Pingba County varied from 9.68% to 16.10%, which belong to fairly clean level. Meanwhile, the experimental results for the Rosa sterilis leaf showed that the contents of Cr and Pb in both planting areas exceeded the permissible limit, while other elements were below the safe limit. The six heavy metal elements in Rosa sterilis leaf did not accumulate.

Distribution characteristics of cadmium and lead in particle size fractions of farmland soils in a lead–zinc mine area in Southwest China

“…There were 108 samples collected and each sample was taken from the 0-20, 20-40 and 40-60 cm soil layers and repeated for three times. Those soils were air-dried and passed through a 2-mm sieve to remove rocks and roots (Yang et al 2014). …”

Chemical Analysis of Dietary Constituents in Rosa roxburghii and Rosa sterilis Fruits

“…Rosa roxburghii (Figure 1), belonging to the Rosaceae family, originates from the karst areas of Guizhou Province, China and the effect of promoting digestion of its fruit was firstly recorded in “Ben-cao-gang-mu-shi-yi” in 1765 A.D. [1]. Modern pharmacological studies have proven that R. roxburghii fruit processes antioxidant, antimutagenic, antiatherogenic and antitumor effects, as well as genoprotective and radioprotective activities [2,3,4,5].…”

Heavy metal contamination in duck eggs from a mercury mining area, southwestern China

“…The concentrations of Hg are 1.3 ~ 360 mg/kg in local topsoil variation, 13 ~ 2,100 ng/L in water, and 6.0 ~ 113 in rice ng/g ( 22 , 23 ). Different from Wuchuan, Hg and other heavy metals are within safe thresholds in Anshun ( 24 , 25 ). In Anshun, Hg concentration in rice and other crops is about 0.01 mg/kg, significantly below the limit set by the “National Food Safety Standard for Contaminants in Foods” ( 24 ).…”

“…Different from Wuchuan, Hg and other heavy metals are within safe thresholds in Anshun ( 24 , 25 ). In Anshun, Hg concentration in rice and other crops is about 0.01 mg/kg, significantly below the limit set by the “National Food Safety Standard for Contaminants in Foods” ( 24 ). Additionally, the level of heavy metal contamination in the soil is low ( 25 ).…”