Archive for the ‘Light Pollution Issues’ category

Modern and Improved, Full Cut-Off Lighting Fixtures In Matthews, NC: Also an Example of Very Poor Lighting In Shelby, NC

May 31, 2020

rogerivester

     Since late summer 2019, my wife and I, have had regular business (Animal Eye Clinic) in the city of Matthews, North Carolina, which is a town on the outskirts of Charlotte.  

     Matthews has some excellent and very attractive full cut-off lighting fixtures.  Lighting should be “fully-shielded” and directed downward to avoid glare and excessive light pollution, as the following photos show.  I can’t be for sure if they are 3000k or less, but hopefully not 4000k.  

     Many of the lights have back-shields which eliminate unnecessary light shining on or in house windows.  This is a great feature.  Proper outdoor lighting should direct light where it’s needed only.  

     The lights I’m discussing in Matthews are in a “seemingly” newer business and residential area.   

IMG_1418      Currently, the trend in many residential areas and city sidewalk lighting in cities “are…

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Fully Shielded LED Streetlights In Chimney Rock, North Carolina: Population 140

April 18, 2020

     While driving through Chimney Rock (population ~140 ) I noticed some very nice fully shielded streetlights.  This is a small tourist town in the North Carolina Mountains, about twenty miles southeast of Asheville.  

     However, I did note some “unshielded” high-intensity LED street-lighting, also in the area.  But, I’m hoping the “seemingly” new shielded lights are the future lighting objective or plans for Chimney Rock?     

     I’ll try to find out more about these lights, maybe this week (April 19th 2020.) I have no idea of the wattage or (temperature) Kelvin of the lights at current, but just the  (fully-shielded) design is a welcome relief as compared to the (unshielded) lights for the past 70 plus years!  

     However, unnecessary high wattage LED lighting without any type of shielding continues to be a problem.   No one seemed to have known how bad the LED lighting revolution would be, as related to light pollution, human health and environmental hazards.  

     Yes, little seems to be known (even today) of the human health and environmental hazards the “invisible” blue lighting of high-intensity unshielded LED lights have created.   

     Hormonal cancers  (prostate and breast cancer) are greatly increased with the new LED lighting, based on the latest AMA studies and report.  

     See the latest report by AMA Trustee, Dr. Mario Motta:  

AMA Light Pollution Study Concerning Highway Safety and The Heath Hazards: By Guest Host, Mario Motta, MD, FACC

https://www.mariomottamd.com/

     Chimney Rock is only a mile or south so from the very small community of Bat Cave, NC. (population ~176)  and about an hour from our house.  

Roger Ivester 

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Modern and Improved, Full Cut-Off Lighting Fixtures In Matthews, NC: Also an Example of Very Poor Lighting In Shelby, NC

March 7, 2020

     Since late summer 2019, my wife and I have had regular business (Animal Eye Clinic) in Matthews, North Carolina, which is a town on the outskirts of Charlotte.  

     Matthews has some excellent and very attractive, full cut-off lighting fixtures.  Lighting should be “fully-shielded” and directed downward to avoid glare and excessive light pollution, as the following photos show.  I can’t be for sure if they are 3000k or less, but hopefully not 4000k, and have no idea of the wattage, which is just as important as fully shielded.   

     Many of the lights have back-shields which eliminate unnecessary light shining on or in house windows.  This is a great feature.  Proper outdoor lighting should direct light where it’s needed only.  

     The lights in Matthews, which I’m discussing are in a “seemingly” newer business and residential area.  An example below:   

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      Currently, the trend is to light residential areas and sidewalks in cities are the “short pole” colonial style fixture with 360º of 100 watt, 4,000k LED’s.  

      This type of lighting, especially with the short poles (directing light into the line-of-sight of a driver) which can make it almost impossible to see in the rain.  

      This can cause it to be difficult to see a pedestrian walking on the side of the road, a cyclist, or any road hazard, and especially difficult for drivers with poor night vision. 

     The following photo is an excellent example of poor lighting that I am referring to, with “many having only been recently installed” in Shelby.  

      I’ve heard from others saying the lights create a real problem, due to the glare creating a hazard, especially in the rain.  

Re: Lighting in Shelby    

      Each light (as pictured below) provides 360º’s of “high intensity” 100 watt LED lighting, which is the equivalent of  ~four (4)  “60 WATT, HIGH-PRESSURE-SODIUM” lights!   

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     The four lights shown in the following photo is the equivalent of ~sixteen (16) 60 watt “high-pressure sodium lighting fixtures” and without any type of shielding!  And this is only in ~100 feet, or less!    

     No, I’m not suggesting that lighting is bad, but lighting should be of “intelligent” design…used only where necessary.   And that would be using lighting of an “acceptable” wattage and with a temperature of (3000k or less) and with “full shielding” to prevent glare and unnecessary and “excessive” light pollution!  

     What is a “high-pressure-sodium” light?   This is “mostly” the “barrel shaped” lighting fixtures we’ve seen on the top of utility poles, all of our lives. 

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     High-intensity LED lighting and all other “excessive” light pollution is proven to damage or injure wildlife, insects, and also increases the risk of cancer (especially) hormonal cancer(s) in both men and women, being prostate and breast cancer.  

     The following was taken (directly) from an IDA “International Dark Sky Association” article.   See their site, to learn more about light pollution:  

https://www.darksky.org/

Exposure to Artificial Light at Night Can Harm Your Health

Humans evolved to the rhythms of the natural light-dark cycle of day and night. The spread of artificial lighting means most of us no longer experience truly dark nights.

Research suggests that artificial light at night can negatively affect human health, increasing risks for obesity, depression, sleep disorders, diabetes, breast cancer and more.

Circadian Rhythm and Melatonin

Like most life on Earth, humans adhere to a circadian rhythm — our biological clock — a sleep-wake pattern governed by the day-night cycle. Artificial light at night can disrupt that cycle.

Our bodies produce the hormone melatonin in response to circadian rhythm. Melatonin helps keep us healthy. It has antioxidant properties, induces sleep, boosts the immune system, lowers cholesterol, and helps the functioning of the thyroid, pancreas, ovaries, testes and adrenal glands. Nighttime exposure to artificial light suppresses melatonin production.

A 2016 American Medical Association report expressed concern about exposure to blue light from outdoor lighting and recommends shielding all light fixtures and only using lighting with 3000K color temperature and below.   IDA

 

Re: Excellent lighting fixtures (below) in Mathews, as following:        

      As I have mentioned earlier, this is a good illustration of excellent full-shielded” lighting fixtures.  Note the “apparent” optional back-shield on the following light, which prevents light from entering through house windows or other…behind the fixture.  

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      An example of some excellent “fully shielded street lighting fixtures” mounted on standard height utility poles, in Chimney Rock, North Carolina.  A  tourist town, with a very small population. 

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Outdoor Lighting Fixtures From Days Past, and Before the Advent of Incredibly Bright and Health Damaging LED Blue Lighting.

December 2, 2019

At one time, most all commercial outdoor lighting was fully shielded and pleasant to the eye, without glare and without creating excessive light pollution.  

Antique lighting fixtures, as pictured below: 

These old and fully shielded lights represented a time when people could still see the night sky.  This was before the era of incredibly bright LED’s, which emit health damaging blue light.  

Light pollution and especially “Blue Rich lighting” not only affects human health, but the entire ecosystem.  

A few of the following photos were made this morning (December 2, 2019) while driving to a local bagel shop.  Some of the lights are within a mile of my house and the others, fairly close.   

I’ve always thought of these 1920-50’s lights as objects of beauty.  

Many old and vacant stores or businesses have had their outdoor lights removed by those appreciating antique lighting fixtures.  

Supplemental photos:

On Sunday afternoon (December 8th) Debbie and I noticed quite a few more of the lighting fixtures of days past in uptown Shelby.    

Beginning with Quilting Fabrics and Notions (Lee Furniture and Sewing Center) and also on the side wall of “Pleasant City Wood Fired Grille” 

Roger Ivester

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AMA Light Pollution Study Concerning Highway Safety and The Heath Hazards, Also The Latest UN Conference on Astronomy and Light Pollution: By Guest Host, Mario Motta, MD, FACC

April 16, 2019

THE LATEST: OCTOBER 2020: THE UN CONFERENCE ON ASTRONOMY AND LIGHT POLLUTION, SUBMITTED TO THIS POST BY DR. MARIO MOTTA, MD

https://owncloud.iac.es/index.php/s/WcdR7Z8GeqfRWxG#pdfviewer

     I have been a light pollution advocate for many years. Certainly 30 years ago I was most interested in the skyglow that affects our view of the starry sky, and though that remains a major concern, I have since learned of the many medical, safety, and environmental concerns that are paramount. On an energy committee on my town, I was able to show that poorly lit intersections with severe glare by unshielded lighting had the highest accident rate.  

      Further review of published studies has shown that as the eye ages, it becomes much more sensitive to disability glare, impairing safe driving. That led to my 2009 AMA resolution that suggested that all streetlights be properly shielded to prevent such glare to make streets safer, allowing elderly to drive in the evening safer. This resolution is still cited by lighting companies.

     In 2012 knowing the research activities of many scientists in the world on the effects of night time lighting on human physiology, I invited 4 prominent researchers to help me write a CSAPH report “Light Pollution: Adverse health effects of Nighttime lighting”.

     This 27 page report with 134 peer reviewed references highlighted the adverse health effects of circadian rhythm disturbance. Suppressing melatonin production by excessive night lighting, especially blue light, leads to myriad health deleterious health effects. 

      The most stunning is an increase in certain endocrine related carcinomas. It is now well known that circadian disturbance causes a 15-20% increase in breast cancer rates, and a similar increase in prostrate cancers. Indeed, this past year (2017) the Nobel Prize in Medicine was awarded to Young, Rosbach, and Hall, the groundbreaking research that elucidated the biochemical pathways that lead to increased illnesses by melatonin suppression. Cancer rates, obesity, diabetes, metabolism issues, and immune system are all affected by melatonin suppression. The World health organization has even listed shift workers, who have repeated melatonin suppression as a “known Carcinogen, level 2”. 

      After the 2012 report came out there was some pushback from the lighting industry, however, in 2014 General Electric wrote its own “white paper” on this subject, and not only agreed with the AMA report, by liberally quoted from my report, stating that corporate policy would change to take note of melatonin production in its lighting policies and products. Shortly after that Apple developed a blue reduction in its phones and computers for late night. Many other companies have since adopted this practice. Again, with the Nobel Prize, and over 1000 peer reviewed papers, this now settled science! The last section of the 2012 report also raised the alarm that excessive outdoor blue light was also causing environmental harm, as all living creatures have a circadian rhythm, even one celled organisms!

      In the ensuing years the lighting industry has developed LED lighting with plans to replace all outdoor lighting with LED’s over the next 10 years, but were poised to use excessive blue producing 4000K LEDs. Given my 2012 paper, and many reports of environmental damage by excessive blue, I was able to move the CSAPH to let me lead on one more report “Human and Environmental  Effects of Light Emitting Diode (LED) Community Lighting” adopted at the AMA annual 2016 meeting by the HOD. This particular report hit a nerve with the lighting industry. The report actually says however that we should indeed replace outdoor lighting with LED lights to save energy, but still shield all streetlights to prevent glare, that was widely accepted. The last resolve stating that blue light should be limited in outdoor lighting and streetlights should use low blue emitting 3000K or lower color temperature led to severe consternation in the lighting industry. 

     The issue was many companies were trying to sell 4000K lighting, as those were the first type of LED’s that were manufactured. They had inventory already made. LED lights use a blue LED and coat it to absorb the blue and re-emit at lower “warmer” color temperature, eg 3000K. 4000K lighting is 30-34% blue light. The 2012 paper and thousands of studies have already shown this is bad for humans and the environment in general.  The AMA report suggested no higher than 3000K. Nowadays, there is good 2700K lighting, and even 2400K lighting as well, and the trend is lower. There is evidence that high blue leads to severe insect, bird, and mammalian effects in nature. It has even been shown to affect salmon runs, and even plankton!

     When this AMA report came out it was hailed by researchers, and many cities paused to study it closely. They came to the same conclusion, and demanded warmer 3000k or even 2700K lighting. Many companies changed their products and are now thriving, others are still fighting.  

     To date most large cities now have adopted the AMA recommendation, and in fact some (like Toronto) state in their lighting that they are “AMA Compliant Lighting” !! To date, New York, Chicago, Tucson, Phoenix, Los Angeles, San Francisco, San Diego, Georgia, Toronto, Montreal, and many others have changed their lighting plans and demand 3000K or lower. This is helped by the fact that wherever 4000K lighting was installed, citizens immediately complained about the harsh glare bluish light.

     Some cities such as Monterey and Davis in California even sued their cities, and demanded a switch to 3000K or lower. Just a few weeks ago (March 2019), the city of Seattle, an early user of 4000K lighting, announced that all 4000K lighting which was recently installed, will be removed and replaced by 3000K lighting due to multiple citizen complaints. 

     Any town contemplating installing LED lighting should take note of the fact that essentially everywhere 4000K and excessive lighting has been installed, they are universally detested and abhorred. Don’t make an expensive mistake and install this type of lighting.

      The 2016 report has in the words of many lighting engineers “revolutionized” the lighting industry. This would not have occurred without the AMA putting this report out there forcing lighting companies to address the human health and environmental effects of the lighting they produce. This would not have happened without our AMA report.

Mario Motta, MD, FACC  

https://www.mariomottamd.com/