Photographer of viral China Tianjin explosion-video got sunburn from nuclear flash

Another hint for Tianjin Explosion being nuclear:

Amercian Dan van Duren who made the viral video of the explosion and his friend got SUNBURN from Explosion-flash at night (23:30 local time).

Sunburn is mainly caused by UV- light from sources above 3000°C (welding, sun, nuclear explosion), not by normal fire (up to 1000°C).

[link to en.wikipedia.org (secure)]

These post-nuclear effects are described in :
Planning Guidance for Response to a Nuclear Detonation, 2.edition 2010

download 135p. pdf:
www.epa.gov/radiation/docs/er/planning-guidance-for-response-​to-nuclear-detonation-2-edition-final.pdf
[link to www.epa.gov]
page 25: Pictures from Hiroshima/Nagasaki sunburn.

Hint: This study mainly discusses effects of a (normally more effective) above-ground 10 KT (Kilo-Tons TNT)-Explosion. If the explosion is underground (as possibly in Tianjin) these effects are strongly reduced !

Content:
CHAPTER 1 - NUCLEAR DETONATION EFFECTS AND IMPACTS IN AN URBAN
CHAPTER 2 - A ZONED APPROACH TO NUCLEAR DETONATION RESPONSE
CHAPTER 3 - SHELTER / EVACUATION RECOMMENDATIONS
CHAPTER 4 – EARLY MEDICAL CARE
CHAPTER 5 – POPULATION MONITORING AND DECONTAMINATION
CHAPTER 6 - PUBLIC PREPAREDNESS - EMERGENCY PUBLIC INFORMATION (new in 2.edition)

More at: [link to homment.com]
Mainstreammedia like nbcnews are supressing van Duren's sunburn and his description as NUCLEAR blast.