Per- and polyfluoroalkyl substances (PFASs) in the blood of two colobine monkey species from China: Occurrence and exposure pathways.

Sci Total Environ

Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. Electronic address:

Published: July 2019

Per-/polyfluoroalkyl substances (PFASs), which are widely used in industrial and commercial products, have been identified as global and ubiquitous pollutants. Despite this, limited data are available regarding the impacts of PFAS exposure and intake in non-human primates. Here, we report for the first time on the occurrence of PFASs in the blood and dietary sources of two rare and endangered primate species, namely, the golden snub-nosed monkey (Rhinopithecus roxellana) and Francois' leaf monkey (Trachypithecus francoisi). Results showed that perfluorooctanoate (PFOA) and perfluorononanoate (PFNA) were dominant and found at the highest proportions in the blood of both species at the four study sites. The ∑PFAS levels in blood samples from captive golden snub-nosed monkeys in Tongling Zoo (mean: 2.51 ng/mL) and Shanghai Wild Zoo (3.52 ng/mL) near urbanized areas were one order of magnitude higher than the levels in wild monkeys from Shennongjia Nature Reserve (0.27 ng/mL). Furthermore, significant age positive relationships for perfluorodecanoic acid (PFDA), perfluorooctane sulfonate (PFOS), and 6:2 chlorinated polyfluorinated ether sulfonates (6:2 Cl-PFESA) were observed in both golden snub-nosed monkeys at Shanghai Wild Zoo and Francois' leaf monkeys at Wuzhou Breeding Center. In addition, PFAS levels in frequently consumed food and drinking water were analyzed for Francois' leaf monkeys. Results showed that tree leaves accounted for the highest percentage of total daily intake of PFASs, especially PFOA, thus highlighting tree leaf consumption as a primary PFAS exposure route for this species. Overall, however, dietary exposure to PFASs was of relatively low risk to Francois' leaf monkey health.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.scitotenv.2019.04.118DOI Listing

Publication Analysis

Top Keywords

francois' leaf
16
golden snub-nosed
12
substances pfass
8
pfass blood
8
pfas exposure
8
leaf monkey
8
snub-nosed monkeys
8
shanghai wild
8
wild zoo
8
leaf monkeys
8

Similar Publications

Article Synopsis
  • The agricultural sector faces challenges in selecting the appropriate bio stimulant, which depends on various factors like crop type, climate, and farming practices; therefore, understanding the molecular interactions between bio stimulants and plants is crucial for effective application.* -
  • The study analyzed the effects of AGRO-K®, a plant-based bio stimulant, on fiber flax (Linum usitatissimum) using NMR and LC-MS-based metabolomics to assess changes in metabolites related to root growth and resistance to lodging.* -
  • Results indicated that AGRO-K® influenced metabolic pathways, specifically hydroxycinnamic acid amides (HCAAs), phenylpropanoids, and flavonoids, similarly to its effects in wheat, suggesting
View Article and Find Full Text PDF

Investigation of canopy interception characteristics in slope protection grasses: A laboratory experiment.

Sci Total Environ

October 2024

Faculty of Applied Sciences, University of Liège, Allée de la découverte 9 - B52, 4000 Liege (Sart Tilman), Belgium; Building Architecture and Town Planning Department (BATir), Université Libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 194/2, 1050 Brussels, Belgium.

Canopy interception significantly affects hydrological processes such as infiltration, runoff and evapotranspiration. Research on grass canopy interception remains limited, and the experimental methods employed differ substantially. To thoroughly investigate the canopy interception characteristics of grass and clarify the methodological differences, five commonly utilized slope protection grass species in temperate regions were cultivated in a laboratory setting, and their canopy interception characteristics were experimentally investigated using the water-balance method (WBM), the water-wiping method (WWM) and the water-immersion method (WIM), respectively.

View Article and Find Full Text PDF

Introduction: Bio stimulants are substances and/or microorganisms that are used to improve plant growth and crop yields by modulating physiological processes and metabolism of plants. While research has primarily focused on the broad effects of bio stimulants in crops, understanding their cellular and molecular influences in plants, using metabolomic analysis, could elucidate their effectiveness and offer possibilities for fine-tuning their application. One such bio stimulant containing galacturonic acid as elicitor is used in agriculture to improve wheat vigor and strengthen resistance to lodging.

View Article and Find Full Text PDF

Feeding adaptation of François' langurs () to the fragmented limestone habitats in Southwest China.

Ecol Evol

April 2024

Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Key Laboratory of Rare and Endangered Animal Ecology, The Chongzuo White-Headed Langur Field Observation and Research Station of Guangxi Guangxi Normal University Guilin China.

Article Synopsis
  • Limestone forests are a unique habitat for François' langurs, with research highlighting their dietary adaptations in fragmented limestone regions.
  • The study in Encheng National Nature Reserve found that these langurs consume 101 plant species as well as cliff minerals and insects, indicating a high level of food diversity compared to other regions.
  • Their feeding behavior varies seasonally, leading them to switch to mature leaves and seeds when their preferred food sources, like fruits and young leaves, are scarce.
View Article and Find Full Text PDF

The feeding posture of a group of François' langurs in Fusui County, Guangxi, was studied using instantaneous scan sampling from January to December 2016 to explore how the species adapts to karst limestone forests by collecting data on feeding posture, forest strata height, and substrate use. The results showed that leaves were the main food type of the François' langurs, with young leaves accounting for 64.97% ± 19.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!