HKO READINGS & RADIATION LEVEL
WEATHER SUMMARY AND RADIATION LEVEL ON 07/06/2008:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 27.5 C
MINIMUM AIR TEMPERATURE 22.8 C
GRASS MINIMUM TEMPERATURE 22.4 C
RELATIVE HUMIDITY 85 - 100 PERCENT
RAINFALL 307.1 MM
TOTAL RAINFALL SINCE 1ST JANUARY 1125.8 MM
AGAINST AN AVERAGE OF 758.1 MM
OTHER STATIONS MIN MAX
KING'S PARK 22.7 C 27.4 C
WONG CHUK HANG 23.4 C 26.9 C
TA KWU LING 23.0 C 24.4 C
LAU FAU SHAN 22.2 C 24.2 C
TAI PO 23.2 C 24.7 C
SHA TIN 22.7 C 25.2 C
TUEN MUN 23.2 C 25.3 C
TSEUNG KWAN O 22.9 C 26.7 C
SAI KUNG 23.2 C 26.4 C
CHEUNG CHAU 22.9 C 26.2 C
CHEK LAP KOK 23.6 C 29.1 C
TSING YI 22.6 C 26.1 C
SHEK KONG 23.0 C 24.7 C
TSUEN WAN 22.6 C 25.6 C
HONG KONG PARK 22.5 C 27.3 C
SHAU KEI WAN 22.4 C 27.7 C
KOWLOON CITY 22.4 C 27.3 C
DURATION OF SUNSHINE (KING'S PARK): 0.0 H
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS
0.6, THE UV INTENSITY WAS LOW.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 3.
(7 JUN 2008) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.09 TO
0.14 MICROSIEVERT PER HOUR. THESE ARE WITHIN THE NORMAL
RANGE OF FLUCTUATION OF THE BACKGROUND RADIATION LEVEL IN
HONG KONG. (SEE NOTE). THE AVERAGE DOSE RATES MEASURED AT
THE RADIATION MONITORING STATIONS OVER VARIOUS PARTS OF THE
TERRITORY WERE AS FOLLOWS :
STATION AVERAGE
(MICROSIEVERTS/HOUR)
PING CHAU 0.09
TAP MUN 0.09
KAT O 0.10
YUEN NG FAN 0.12
TAI MEI TUK 0.11
SHA TAU KOK 0.11
KWUN TONG 0.13
SAI WAN HO 0.10
KING'S PARK 0.14
TSIM BEI TSUI 0.13
NOTE
1. FROM READINGS TAKEN AT VARIOUS LOCATIONS IN HONG KONG DURING
THE PERIOD 1987-2005, THE BACKGROUND AMBIENT GAMMA RADIATION
LEVELS MAY VARY BETWEEN 0.06 AND 0.3 MICROSIEVERT PER HOUR.
2. PROTECTIVE ACTION MAY BE REQUIRED IF THERE IS AN INCREASE IN
THE AMBIENT GAMMA DOSE RATE ABOVE BACKGROUND SUCH THAT THE
TOTAL ADDITIONAL DOSE IS EXPECTED TO EXCEED 5000
MICROSIEVERTS.
3. FOR EXAMPLE, IF AMBIENT GAMMA RADIATION IS THE ONLY FACTOR
CONTRIBUTING TO THE RADIATION DOSE TO A PERSON, THIS DOSE
OF 5000 MICROSIEVERTS MAY BE REACHED WHEN THE AMBIENT GAMMA
DOSE RATE IS 1000 MICROSIEVERTS PER HOUR (MORE THAN 3000
TIMES ABOVE BACKGROUND) AND LASTS FOR 5 HOURS; OR WHEN THE
DOSE RATE IS 200 MICROSIEVERTS PER HOUR (MORE THAN 600
TIMES ABOVE BACKGROUND) AND LASTS FOR 25 HOURS.
Climatological Information for 7 June
