Pollution in Romania

Day 3,155, 23:32 Published in Romania Romania by deus otiosus
Aim
This is a back of the envelope analysis of pollution levels in Romania, 10 days after it was introduced in eRepublik.
The values are here:
Dobrogea, Muntenia, Oltenia, Transilvania, Moldova pollution
Banat, Crisana, Maramures, Bucovina pollution

Introduction
Roughly a week ago, pollution and holdings were introduced as new features in eRepublik. The idea behind pollution was (oh, well) that industry is polluting, so that the more production you have in any given region, the more pollution you have and less productive you are (as a side note, there is no economic reason behind this, if the designers of the game would have come up with a way of coupling pollution to the quality of life, say, by reducing the amount of energy you can recover proportional to pollution level, would have made sense).
The newly introduced holdings gave managers the choice to choose a region where to deploy their factories, a choice that could be quite costly should one decide to move a factory from one region to the other. Basically, choosing boils down to chose 1) between countries with different bonuses and 2), within countries, between regions with variable bonuses. Choosing a country different that that of CS, leaves the opened the possibility of not being able to work in case of wars, or having troubles selling goods in case of trade embargoes. While on the short (and medium term) it could be useful to produce more in a high bonus country (e.g., USA), the "chance" of increasing taxes, wars or embargoes always lingers. It is also worth considering the high level of nationalism in this game (the core of the game, actually) that makes "all" players wishing at point or another to return to their real life countries. And than you have the costs of moving the companies, costs that amount to tens/hundreds of thousands of CC. Prohibitive, anyway, so I guess most players have decided to place their holdings and companies in their home country.
The next step in placing a company is/was to choose the region, and now pollution walks in: it works to reduce the output of factories (cry Ford, cry!), because:
Productivity = country bonus + region bonus + booster - pollution
Given that the country bonuses are constant across regions, and boosters works the same, the whole math is reduced to:
Productivity ~ region bonus - pollution
One may want to place his company into a high bonus region, but this comes with high pollution, thus reducing the productivity. Another choice is to place the company into a region with non-existent bonuses, hoping that no one will do so which will result in low pollution and hence increased productivity.
So, having decided for a country, one could have placed his companies the first day and start producing hoping for the best, or wait to see how pollution works and decide later. All my sympathy for those who have chosen wrong, and bows to those that did it right. For the remaining, below I will show and analyze the development of pollution in Romania. I have no advice, please look at the numbers an decide for yourselves.

Results
As a reminder, Romania has +5 bonus for food and +12 for weapons in Molvova, and +2 for weapons in Oltenia.
Pollution levels are given in the tables below, for food and weapons, respectively, on a daily basis, since day 3147 until day 3156:
Dobrogea, Muntenia, Oltenia, Transilvania, Moldova pollution
Banat, Crisana, Maramures, Bucovina pollution

Observations
1. Moldova has +12 bonus for weapons and +5 for food, and Oltenia has +2 bonus for weapons.
2. On day 3147 (the days refer to the day of pollution, so companies were actually placed on day 3146), numerous managers planted their companies in Moldova, promptly rising pollution to 25 % for Q7 weapons, >18 % for WRM and to between 20-25 % for Q1-Q3 and Q5 food.
3. Some managers decided to place their companies in Transylvania, in anticipation of the coming aviation industry and the existing bonuses for construction companies (probably deciding to have all companies in one place). Pollution rose to >10 % for Q7 weapons.
4. Oltenia (+2 % weapons bonus) was settled early on, resulting in a pollution factor of 10-12 5 for Q7 weapons.
5. Some managers waited for the dust after the rumble to settle and on day 3151 rushed for the clean air of Bucovina and on day 3152 in Banat, only to find that many did so - pollution quickly jumped to 12 % and 17 %, respetively, penalizing them quite heavily.
6. The "wise", seeing what have happened in Bucovina and Banat the previous two days congratulated themselves in a special manner for being patient, hoped for the best and moved to Maramures the next day: pollution jumped to >13 %.
7. These events sent some ripples through the industrialist's rank, so they've stopped placing companies for two days and than again, did what thou shalt not: heavily polluted Crisana. Why was this on the last clean places perhaps has to do with some lingering fears that this will be the first region conquered by Hungary in an attempt to reach for Transylvania and Moldova.
8. Dobrogea saw a steady increase in pollution, being in the process of industrialization, while Muntenia was settled early, probably due to some emotional links to it being the early capital.

Conclusions
1. Presently, having a Q7 weapons company in Moldova results in a -13% productivity, lower than in Dobrogea (-8 😵, Muntenia (-8 😵, Oltenia (-8 😵, Crisana (-10 😵, roughly equal to that in Maramures and Bucovina (- 13 😵 and better than in Transylvania and banat (between -14 % and -16 😵. If the pollution for WRM is considered, the situation is even worse for Moldova.
2. The same holds true for food, where so far, having a company in Moldova is the worst thing to do.
Things might change once aviation is introduced, with some people placing their companies than (in Transylvania) and thus changing pollution (there only). If no changes will be made to the equation (?) behind pollution, perhaps avoiding Moldova is the right thing to do. However, Plato might change the formulas in one year, so all the gains until than could be wiped out.