Short version: Plastic is everywhere, but it doesn’t make you sick. There are some familiar bird sounds at the new physics building. An honest apology keeps me involved. Oxford’s St Giles Fair returns.
Plastic in Water
I woke up from a dream this week thinking about the amount of plastic particles humanity has introduced into the environment. The disturbing reality is that just as we have added enormous amounts of plastic to the ocean so too have we added plastic to the water we drink and the food we eat, and hence to ourselves. Plastic has been falling out of popularity, with campaigns to reduce the use of plastic in supermarkets, and bans of plastic drinking straws in the US. It is relatively rare that organic molecules become well known, but BPA (a monomer for poly-carbonate) has attracted sufficient controversy to become a household acronym (particularly when followed by the word “free”).
Ultimately, however, a reason plastic is so ubiquitous is probably also a reason it is relatively harmless: plastics are fairly inert. They don’t break down easily, and so similarly don’t get broken down or absorbed by the body easily. This study found worryingly that Chinese infants’ exposure to BPA is 10x higher than that of adults, but also found that these levels of exposure pose little risk to health.
There is a fairly comprehensive and recent report from the World Health Organisation, which similarly concludes that plastic is everywhere, but there is not evidence that it is causing harms to health. It does suggest the need for further investigation into possible health effects, and that plastic waste management needs to be improved.
Interesting to me was that while browsing this topic, I came across the website “plasticsmakeitpossible“, produced by the American Chemical Council, which in turn is made up of some pretty large companies. I’ve not delved much into how established corporations sway public opinion at arms length, and I think it would be interesting to discuss websites like “plasticsmakeitpossible” in a future blog post.
This week while waiting outside the Clarendon Laboratory, I heard the strangely familiar sound of Kookaburras coming from the new physics building (the Beecroft Building). My first thought is that the birds were being kept nearby for study, but after hearing the exact same pattern of calls (recording below) I realised it was being played on a loud speaker. My guess is that it is to deter real birds from nesting/resting on the new building, but I could not find any details of this system from the architects website. The sounds do not play at regular intervals so I suspect some sort of motion sensors are involved.
I recently received an email from a study explaining that a large amount of valuable data had been deleted. It must have been tempting to try to blame the system or a fault in the technology, but this individual took ownership of their mistake (essentially having pressed the wrong buttons), and I found myself with more trust in them as a result.
This event is also a useful reminder to implement good data management processes, including backups of irreplaceable data and some sort of delay mechanism for the permanent deletion of data.
St Giles Fair
Oxford hosts the St Giles Fair on the Monday and Tuesday following the first Sunday in September. For at least 200 years the central streets of Oxford have been closed to make way for stalls and rides, and strolling through the rides, games, and food stalls is becoming a tradition for me as well.