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PRESS WEATHER NO. 006 - HKO READINGS & RADIATION LEVEL
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HKO READINGS & RADIATION LEVEL

YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 29.6 C
MINIMUM AIR TEMPERATURE 24.2 C
GRASS MINIMUM TEMPERATURE 23.7 C
RELATIVE HUMIDITY 61 - 80 PERCENT
RAINFALL 0 MM
TOTAL RAINFALL SINCE 1ST JANUARY 2379.2 MM
AGAINST AN AVERAGE OF 2310.5 MM
 
OTHER STATIONS MIN MAX
KING'S PARK 23.8 C 28.9 C
WONG CHUK HANG 22.1 C 28.9 C
TA KWU LING 19.2 C 30.1 C
LAU FAU SHAN 21.4 C 29.3 C
TAI PO 21.8 C 28.3 C
SHA TIN 22.2 C 29.3 C
TUEN MUN 22.8 C 30.3 C
TSEUNG KWAN O 21.6 C 28.9 C
SAI KUNG 23.5 C 28.0 C
CHEUNG CHAU 22.6 C 29.8 C
CHEK LAP KOK 24.1 C 29.2 C
TSING YI 23.0 C 29.8 C
SHEK KONG 20.8 C 30.3 C
TSUEN WAN HO KOON 21.0 C 28.2 C
TSUEN WAN SHING MUN VALLEY 21.2 C 30.2 C
HONG KONG PARK 23.7 C 29.8 C
SHAU KEI WAN 23.4 C 29.0 C
KOWLOON CITY 23.4 C 29.4 C
HAPPY VALLEY 22.9 C 29.2 C
WONG TAI SIN 23.4 C 29.4 C
STANLEY 23.5 C 27.8 C
KWUN TONG 23.4 C 28.2 C
SHAM SHUI PO 23.0 C 30.7 C
KAI TAK RUNWAY PARK 24.0 C 28.0 C
YUEN LONG PARK 21.4 C 31.2 C
TAI MEI TUK 23.0 C 30.4 C
 
DURATION OF SUNSHINE (KING'S PARK): 9.0 H
 
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS 3,
THE UV INTENSITY WAS MODERATE.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 6.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND): NO DATA
 
YESTERDAY'S (19 OCT 2019) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.09 TO
0.15 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 YESTERDAY'S AVERAGE
(MICROSIEVERT/HOUR)
PING CHAU 0.09
TAP MUN 0.09
KAT O 0.11
YUEN NG FAN 0.12
TAI MEI TUK 0.11
SHA TAU KOK 0.10
KWUN TONG 0.13
SAI WAN HO 0.10
KING'S PARK 0.14
TSIM BEI TSUI 0.13
CAPE D'AGUILAR 0.13
CHEK LAP KOK 0.15

 
NOTE
1. FROM READINGS TAKEN AT VARIOUS LOCATIONS IN HONG KONG IN THE
PAST, THE HOURLY MEAN AMBIENT GAMMA RADIATION DOSE RATE MAY
VARY BETWEEN 0.06 AND 0.3 MICROSIEVERT PER HOUR.
(1 MICROSIEVERT = 0.000001 SIEVERT = 0.001 MILLISIEVERT)
 
2. TEMPORAL VARIATIONS ARE GENERALLY CAUSED BY CHANGES IN
METEOROLOGICAL CONDITIONS SUCH AS RAINFALL, WIND AND
BAROMETRIC PRESSURE.
 
3. SPATIAL VARIATIONS ARE GENERALLY CAUSED BY DIFFERENCES IN
THE RADIOACTIVE CONTENT OF LOCAL ROCK AND SOIL.
 
4. THE DATA DISPLAYED IS PROVISIONAL. ONLY LIMITED DATA
VALIDATION HAS BEEN CARRIED OUT.


DISPATCHED BY HONG KONG OBSERVATORY AT 00:15 HKT ON 20.10.2019

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