XN000022-1988-07-28 — Page 17

THURSDAY, JULY 28, 1988

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RAIN BANDS HAD BEGUN TO AFFECT HONG KONG LATE IN THE AFTERNOON, AND THUNDERY DOWNPOURS PERSISTED INTO THE EVENING.

OF FAR

HEAVIER

RAINFALL

THE OBSERVATORY ALSO SAID A READING GIVEN IN A BULLETIN LATE LAST NIGHT WAS INCORRECT.

FAULTS

HAD OCCURRED IN REMOTE

DURING THE THUNDERSTORMS, RECORDING RAINGUAGES, GIVING RISE TO ERRONEOUS READINGS.

GRADING OF BEACH WATER QUALITY

(THURSDAY) WATER QUALITY OF ALL

THE ENVIRONMENTAL PROTECTION DEPARTMENT (BPD) TODAY ANNOUNCED THE LATEST GRADES ON THE BACTERIAL BATHING BEACHES IN HONG KONG.

TO INFORM SWIMMERS AND THE PURPOSE OF THE GRADING SYSTEM IS

AT VARIOUS THE GENERAL PUBLIC ABOUT THE STATE OF BACTERIAL POLLUTION BEACHES.

THE GRADING IS BASED ON THE E. COLI DATA OBTAINED IN ITS ROUTINE BEACH WATER QUALITY MONITORING PROGRAMME.

ARE GRADING

BASED

BY THE EPD

THE ON

MEDIAN OVER A TWO AND A

THE E. COLI DATA USED FOR VALUES OF THE MOST RECENT FIVE RESULTS, OBTAINED HALF MONTH PERIOD ACCORDING TO THE USUAL SAMPLING FREQUENCY.

THIS REPRESENTS

BEACHES

THE GRADES FOR SOME BEACHES MAY FLUCTUATE. NATURAL FLUCTUATION IN THE BACTERIAL QUALITY OF THE CASES, AS RAIN AND TIDES BRING MORE OR LESS POLLUTION TO THE AREAS.

A

IN MOST SWIMMING

GENERAL PICTURE OF THE NEVERTHELESS, THE GRADES GIVE A GOOD

THE BEST AVAILABLE AND FORM OF BEACHES, FORECAST OF BEACH WATER QUALITY IN THE IMMEDIATE FUTURE.

BACTERIAL WATER QUALITY

1

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