Detection of metals by differential pulse anodic stripping voltammetry (DPASV) in pollen collected from a fragment of the atlantic forest in Piracicaba/SP

Abstract

Detection techniques of trace elements have high costs for routine analysis while differential pulse anodic stripping voltammetry (DPASV) has low operational costs and few structural requirements. This technique was considered a good alternative for pollen analysis. In the analyses, Zinc, Copper and Lead showed concentrations higher than the threshold established for human daily intake of food; however, Cadmium concentrations did not exceed the limits. The high concentrations found may be explained by the geographical locality of the apiary, which is located near the main road to access the city and a water and sewage treatment plant. In addition, other anthropogenic processes, namely agricultural, industrial and residential activities may have influenced. The technique of voltammetry can be considered a good alternative for pollen routine analysis, providing accuracy at lower costs. The study provides information about the contamination of the matrix of bee pollen.

Stingless Bee Honey as Bio-Indicator of Heavy Metals Pollution in and around the University of Ilorin Environ Kwara State, Nigeria

“…Alqorni et al, 2012. In a similar research carried out by Nascimento et al, 2018, Pb was also detected only in one of the samples. Pb is considered to have a limited accumulation in plants and not readily bio available to plants (Hladun et al, 2015, Davies et al, 2003 therefore its low concentrations is justified in the raw materials for honey production as the nectar is less exposed to other source of contamination in the environment such as air (Silveira et al, 2013). These may have given a correlation with Pb concentration below the detection limit in 98% of the analyzed samples in this study.…”

Determining the Levels of Trace Elements Cd, Cu, Pb and Zn in Honey of Stingless Bee (Hymenoptera: Apidae) Using Voltammetry

“…Cd was not found in any sample analyzed. Silveira et al [21] studied honey pollen in the same area studied by Araújo [20] and found higher levels of these elements, compared to levels found for honey, with the following average values of 540.7 mg•kg −1 , Pb (28.7 mg•kg −1 ), Cu (56.55 mg•kg −1 ) and Cd (280.75 mg•kg −1 ).…”

Honey from Stingless Bee as Indicator of Contamination with Metals

“…In this its low concentration is justified in floral nectar, raw material for honey production. In addition, nectar is less exposed to environmental contamination from other sources such as air (Silveira et al, 2013). This may have a correlation with Pb concentration below the detection limit in 98% of the samples analyzed in our study.…”