diff --git a/google/cloud/bigquery/opentelemetry_tracing.py b/google/cloud/bigquery/opentelemetry_tracing.py
index 3d0a66ba8..0e1187c6b 100644
--- a/google/cloud/bigquery/opentelemetry_tracing.py
+++ b/google/cloud/bigquery/opentelemetry_tracing.py
@@ -97,6 +97,11 @@ def _get_final_span_attributes(attributes=None, client=None, job_ref=None):
         final_attributes.update(job_attributes)
     if attributes:
         final_attributes.update(attributes)
+
+    filtered = {k: v for k, v in final_attributes.items() if v is not None}
+    final_attributes.clear()
+    final_attributes.update(filtered)
+
     return final_attributes