Abstract
Aim. In cases of environmental danger, the information spread plays an important role in risk
 management. We have considered recent arsenic environmental danger in Głogów and Legnica (Copper/Cuprum Basin) according to the available data (2015-2017) from social network analysis and agent-based modelling point of view.
 Thesis. In case of danger of unknown consequences, there are at least 2 different strategies of
 information management:
 1) information spread that leads to awareness of the whole society;
 2) keeping the whole information in secret under control that leads to a partial social awareness, available to a small number of people only.
 Methods. In our model, the probability of information spread between two nodes is inverse
 proportion to connectivity of the susceptible node because people who have a lot of connections are more immune. We have applied theoretical agent-based modelling on Barabasi-Albert networks to explore various scenarios of information spread in Social Media. We have investigated the function of hubs within that concept.
 Results. We have considered various levels of environmental danger and draw possible projections for the future. Oscillations according to temporal socio-political conditions as well as increase in attention in 2018 have been revealed.
 Conclusions. Despite blocking of information by hubs, the successful information spread is possible when levels of danger are high enough. The perception and impression of information spread by society is also discussed.
Highlights
Arsenic in Cuprum Basin Arsenic as a substance is very dangerous for health including a carcinogenic effect on the human body
According to a few simulation scenarios, we try to predict that percentage of actors involved in social media in the Cuprum Basin arsenic danger:
Have been oscillating according to temporal socio-political conditions [Fig. 9]
Summary
Arsenic in Cuprum Basin Arsenic as a substance is very dangerous for health including a carcinogenic effect on the human body. Arsenic is a natural by–product in cuprum plants and it is emitted to the air naturally [Fig. 2 left] in the investigated region. The link between Arsenic concentration in the air (exceeding the norms few times [Fig. 3]) and health is still unrevealed, despite people in Cuprum Basin living longer [Fig. 4 left] in better health conditions [Fig. 4 right] than the rest of Polish society.
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