Exposure Time for Vitamin D Synthesis / MED (Climatology):Miyazaki
Exposure Time around Noon (min.)
January
February
March
MED 80 80 75 70 60 55 50 40 45
600 cm2 30 30 30 25 22 20 20 15 15
1200 cm2 15 15 15 13 11 10 9 8 8
April
May
June
MED 40 32 32 35 32 30 35 40 35
600 cm2 13 12 11 12 11 10 12 13 12
1200 cm2 7 6 6 6 6 6 6 7 6
July
August
September
MED 30 25 22 25 30 30 30 40 40
600 cm2 10 9 8 9 10 9 10 15 15
1200 cm2 5 5 4 4 5 5 5 8 8
October
November
December
MED 40 50 60 55 70 85 80 80 100
600 cm2 15 20 22 20 25 35 30 32 40
1200 cm2 7 10 11 10 12 17 15 16 20
-
The numerical values in the row of 'MED', '600 cm2' and '1200 cm2' show the mean time to reach MED (Minimal Erythema Dose), the time required for 10 µg Vitamin D to be produced for a skin area of 600 cm2, and 1200 cm2 exposed to solar radiation in minutes, respectively.
By clicking each 10 day period, you can also see a diurnal variation of exposure time for that period.
Appropriate exposure time at every site shown below can be seen.
Cape Ochi-ishi (Hokkaido),
Rikubetsu (Hokkaido),
Sapporo (Hokkaido),
Aomori (Aomori),
Sendai (Miyagi),
Tsukuba (Ibaraki),
Yokohama (Kanagawa),
Nagoya (Aichi),
Otsu (Shiga),
Osaka (Osaka),
Miyazaki (Miyazaki),
Cape Hedo (Okinawa),
Hateruma (Okinawa).