Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2055 ( "Index" real, "Ozone, Running 8 hourly mean (\u03bcg/m 3 )" text, "Nitrogen Dioxide, Hourly mean (\u03bcg/m 3 )" text, "Sulphur Dioxide, 15 minute mean (\u03bcg/m 3 )" text, "PM10 Particles, 24 hour mean (\u03bcg/m 3 )" text, "PM2.5 Particles, 24 hour mean (\u03bcg/m 3 )" text )

### Question ###
What's the sulphur dioxide count when the nitrogen dioxide is 468-534?

### Accurate SQL ###

SELECT "Sulphur Dioxide, 15 minute mean (\u03bcg/m 3 )" FROM table_2055 WHERE "Nitrogen Dioxide, Hourly mean (\u03bcg/m 3 )" = '468-534'