SPONSOR CPD PROGRAMME | LIGHTING Module 213 April 2023 Name (please print)........................................................................................ Job title ............................................................................................................... Organisation ..................................................................................................... 1. What proportions of US and European populations are thought by the IDA to live under a light-polluted night sky? Address ............................................................................................................. ............................................................................................................................... A Fewer than 50% B 51%-65% C 66%-80% Postcode ........................................................................................................... D 81%-95% Email ................................................................................................................... E More than 95% Are you a member of CIBSE? If so, please state your 2. Which of the following countries would appear to suffer ............................................................................................................................... membership number: .................................................................................. from the most widespread light pollution? A England B France C Germany D Northern Ireland E Scotland 3. Which of these is not included in the article as one of the four factors that are used to describe light pollution? A Glare B Light nuisance C Presence D Sky glow E Switching frequency 4. In the illustrated post-top lanterns, what was the upward light output? A Below 5% B 6%-40% C 41%-60% D 61%-85% E More than 85% 5. What is the approximate threshold for scotopic vision? A 0.0001lux B 0.001lux C 0.01lux D 0.1lux E 1lux 44 April 2023 www.cibsejournal.com The CIBSE Journal CPD Programme By participating in this CPD module, you consent to sharing your details with Tamlite. Tamlite may contact you via email and/or telephone with further information and technical insight on its services. You have the right to opt out from such communications at any time. I understand that I will receive marketing communications from Tamlite after completing this module (please tick here): By entering your details above, you agree that CIBSE may contact you with information about CPD and other training or professional development programmes, and about membership of CIBSE, if you are not a member. Go to www.cibsejournal.com/cpd to complete this questionnaire online. You will receive notification by email of successful completion, which can be used to validate your CPD records. Alternatively, fill in this page and post it to: N Hurley, CIBSE, 222 Balham High Road, London, SW12 9BS. Further reading: CIBSE SLL LG21 provides a great reference for this area and is free for CIBSE members. Institution of Lighting Professionals Guidance Note 01/20 Guidance notes for the reduction of obtrusive light provides some excellent succinct information and is freely downloadable. References: 1 Peck, L, Lighting Guide 21: Protecting the night-time environment, CIBSE SLL 2021. 2 bit.ly/CJApr23CPD1 accessed 24 February 2023. 3 Kyba, C et al, Citizen scientists report global rapid reductions in the visibility of stars from 2011 to 2022, Science, 19 January 2023 DOI: 10.1126/science.abq7781. 4 Artificial Light at Night: State of the Science 2022, International Dark-Sky Association, DOI: 10.5281/zenodo.6903500. 5 CIE 150:2017 Guide on the Limitation of the Effects of Obtrusive Light from Outdoor Lighting Installations 2nd Edition, CIE 2017. 6 bit.ly/CJM 7 Falchi, F, Bar, S, A linear systems approach to protect the night sky: implications for current and future regulations, Royal Society Open Science 2020. Skies, 2021 bit.ly/CJApr23CPD2. 8 bit.ly/CJApr23CPD3 accessed 24 February 2023. 9 bit.ly/CJApr23CPD4 accessed 24 February 2023.