North Carolina air quality regulators fined an South Carolina-based manufacturer nearly $270,000 for failing to monitor its emissions and then submitting false data to the state.Solite did not conduct continual emissions checks for sulfur dioxide and other pollutants at a plant in Stanly County that made material used to make cement blocks, state regulators said. The company, a subsidiary of Giant Cement Holdings Inc. of Summerville, sold the plant to Carolina Stalite Corp. in September.Richard Familia, vice president of environmental affairs for Giant Cement, said company officials disagree with the size of the penalty and are discussing how to handle the fine. He said the state hasn’t indicated any financial gain or environmental harm resulting from the violations.