Hybrid collectivity

2020 ◽  
Vol 8 (4) ◽  
pp. 15-28 ◽  
Author(s):  
Lynda Olman ◽  
Danielle DeVasto

In this essay, we propose a hack of existing models of environmental risk communication so that they will better address Anthropocene risks. We focus our discussion on a key area of risk communication: environmental risk visualization (ERV). Drawing on social-constructionist theories of risk and our own research on ERVs, we assemble criteria for designing and evaluating ERVs based on their hybrid collectivity---meaning their ability to collect agents around themselves over time and across traditional Modern divides between human/nonhuman, expert/nonexpert, and nature/culture. We test the criteria on two ERVs from the 2011 Fukushima disaster and discuss the resulting promises and challenges of an approach to risk communication motivated by hybrid collectivity.

Author(s):  
Siyuan Zhang ◽  
Xiaodong Hao ◽  
Jiahui Tang ◽  
Jin Hu ◽  
Yan Deng ◽  
...  

The improper stacking of chromium (Cr) slag poses a great threat to the environment and human health. The toxicity of Cr in soil is not only related to its total amount, but also to its fractions. A simulated experiment was conducted in laboratory to assess the environmental risk of Cr fractions migration and distribution in red soil. The results showed the content of acid-soluble and reducible Cr significantly decreased (P < 0.05) in top layer but increased in middle and substratum layers over time. This indicated that acid-soluble and reducible Cr migrated downward with time and the relative mobility of acid-soluble Cr (0.038 mg/kg·d·m) was higher than that of reducible Cr (0.028 mg/kg·d·m). Furthermore, correlation analysis between microbial community and chromium fraction showed the relative abundance of Lysobacter, Flavihumibacter, Flavisolbacter, and Altererythrobacter was significantly (P < 0.05) correlated with acid-soluble and reducible fractions. Thus, these microorganisms might be evaluators to assess the migration of acid-soluble and reducible fractions in red soil. In summary, this study provided a new comprehension on remediation of Cr-contaminated soil by monitoring the migration of acid-soluble and reducible fractions and the changes of related microbial groups.


2021 ◽  
Author(s):  
Susan Zummo Forney ◽  
Anthony J. Sadar

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