Table: TABLE II-Results obtained in 1958 of the daily observations of the concentration of SMOKE by the volumetric method.
TABLE II-Results obtained in 1958 of the daily observations of the concentration of SMOKE by the volumetric method.
| Month | Rainfall collected in deposit gauge at Golden Lane | Golden Lane | POLICE STATIONS |
|---|
| Bishopsgate | Cloak Lane | Snow Hill |
|---|
| Monthly Average | Monthly Average | Monthly Average | Monthly Average |
|---|
| Equivalent to |
|---|
| Millimetres | inches of rain | Milligrams per 100 cubic metres | Milligrams per 100 cubic metres | Milligrams per 100 cubic metres | Milligrams per 100 cubic metres |
|---|
| January | 47 | 1.86 | 14 | 27 | 21 | 8 |
| February | 59 | 2.31 | 10 | 23 | 16 | 5 |
| March | 26 | 1.01 | 11 | 23 | 16 | 6 |
| April | 44 | 1.72 | 8 | 17 | 13 | 4 |
| May | 57 | 2.26 | 3 | 16 | 7 | 2 |
| June | 120 | 4.73 | 3 | 10 | 7 | 2 |
| July | 42 | 1.65 | 3 | 14 | 7 | 3 |
| August | 78 | 3.08 | 2 | 13 | 10 | 3 |
| September | 89 | 3.51 | 3 | 9 | 11 | 4 |
| October | 79 | 3.12 | 7 | 17 | 15 | 9 |
| November | 29 | 1.13 | 21 | 37 | 29 | 17 |
| December | 72 | 2.83 | 25 | 38 | 37 | 20 |
| Averages: | | | | | | |
| 1958 | 62 | 2.44 | 9 | 20 | 16 | 7 |
| 1957 | 42 | 1.66 | 9 | 25 | 15 | 7 |
| 1956 | 44 | 1.74 | 14 | 15(a) | 12 | 13 |
| 1955 | 43 | 1.71 | 14 | 13(a) | 10(a) | 12(a) |
| 1954 | 47 | 1.80 | 14 | — | — | — |
| 1953 | 36 | 1.40 | 13 | — | — | — |
| 1953-1957 | 42 | 1.66 | 13 | _ | — | — |
(a) Measurement for 9 months of the year.
Table: TABLE III.—Results obtained in 1958 of the measurement of SULPHUR DIOXIDE by the volumetric and lead peroxide methods.
TABLE III.—Results obtained in 1958 of the measurement of SULPHUR DIOXIDE by the volumetric and lead peroxide methods.
| Month | Rainfall collected in deposit gauge at Golden Lane | Police Stations | LEAD PEROXIDE METHOD |
|---|
| Golden Lane | Bishops-gate | Cloak Lane | Snow Hill | Golden Lane | Finsbury Circus |
|---|
| Equivalent to |
|---|
| Millimetres | inches of rain | Monthly Average | Monthly Average | Monthly Average | Monthly Average | Mgs. (S.0.3) per day per 100 sq. cm. |
|---|
| J anuary | 47 | 1.86 | 16 | 21 | 16 | 13 | 5.00 | 4.05 |
| F ebruary | 59 | 2.31 | 11 | 18 | 14 | 12 | 3.70 | 3.87 |
| March | 26 | 1.01 | 11 | 16 | 15 | 12 | 3.88 | 3.40 |
| April | 44 | 1.72 | 7 | 12 | 11 | 9 | 2.54 | 2:52 |
| May | 57 | 2.26 | 5 | 10 | 8 | 4 | 1.99 | 1.78 |
| June | 120 | 4.73 | 5 | 9 | 7 | 5 | 1.89 | 1.42 |
| July | 42 | 1.65 | 5 | 8 | 6 | 5 | 1.39 | 1.61 |
| August | 78 | 3.08 | 5 | 9 | 6 | 4 | 1.82 | 1.40 |
| September | 89 | 3.51 | 6 | 9 | 9 | 7 | 2.60 | 1.78 |
| October | 79 | 3.12 | 10 | 15 | 12 | 12 | 3.37 | 2.75 |
| November | 29 | 1.13 | 16 | 21 | 21 | 17 | 4.11 | 3.38 |
| December | 72 | 2.83 | 18 | 24 | 21 | 18 | 4.86 | 3.99 |
| Averages: | | | | | | | | |
| 1958 | 62 | 2.44 | 10 | 14 | 12 | 10 | 3.10 | 2.66 |
| 1957 | 42 | 1.66 | 9 | 12 | 11 | 11 | 2.71 | 2.47 |
| 1956 | 44 | 1.74 | 10 | 15(a) | 12 | 13 | 2.69 | 2.42 |
| 1955 | 43 | 1.71 | 10 | 13(a) | 10(a) | 12(a) | 2.85 | 2.57 |
| 1954 | 47 | 1.80 | 11 | — | — | — | 2.54 | 2.60 |
| 1953 | 36 | 1.40 | 11 | — | —- | —- | 2.30 | 2.47 |
| 1953-1957 | 42 | 1.66 | 10 | — | — | — | 2.62 | 2.51 |
(a) Measurements for 9 months of the year.
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